MATERIALS RESEARCH BULLETIN
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2025
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IF 5.7
Jinglong Huang,Chengjun Huang,XuanYi Zhang,Wenguang Tan,Juntao Niu,Yuchen Yang,Hongfu Yu,Donglin Han
As society develops, various waste are discharged in increasingly large quantities, so efficient wastewater treatment methods are urgently needed. Herein, Prussian blue/clinoptilolite/persulfate (PB/Cpt/PS) are utilized in a multi-functional wastewater treatment system, which removes refractory organics through the synergistic effect of adsorption and cascaded activated advanced oxidation processes. Under light irradiation, PB produced heat to activate PS to produce free radicals and decompose organics; in dark conditions, Fe 2+ from PB slowly activated the PS and consistently decomposed organics. Further, the porous and multilayered PB/Cpt performed absorbance effectively, which not only improves the photo-degradability of the system by closing in the organics and free radicals but also alleviates the side effect of PS by collecting remaining SO 4 2- . The results confirmed that PB/Cpt/PS could remove organics efficiently, regardless of the light source, pH disturbance, or cycle-index. Meanwhile we conducted quenching experiments to identify reactive species and proposed probable degradation mechanism according above results.
研究领域:
环境科学
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材料科学
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化学工程
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产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
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2020
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IF 10.652
Min-Ping Zhu,Jia-Cheng E. Yang,Xiaoguang Duan,Shaobin Wang,Darren Delai Sun,Baoling Yuan,Ming-Lai Fu
Immobilizing metal-organic frameworks in macro-supports to form three-dimensional catalysts holds a great promise in environmental remediation, however quantitative structure/property-catalytic activity relationship remains unknown currently. In this work, we constructed Co 2 AlO 4 /CoAl 2 O 4 @Al 2 O 3 monoliths derived from ZIF-67@γ-Al 2 O 3 pellets and systematically investigated their surface chemistry-activity relationships in peroxymonosulfate (PMS) activation for organic degradation. The activities of Co 2 AlO 4 /CoAl 2 O 4 @Al 2 O 3 catalysts were selectively correlated with their ratios of Co 3+ /Co 2+ and O Defect /O Lattice . The optimized Co 2 AlO 4 /CoAl 2 O 4 @Al 2 O 3 demonstrated an excellent catalytic efficacy toward PMS activation for metronidazole removal in a wide pH range (3.29–10.26) and OH was the dominant oxidant for metronidazole oxidation. The catalyst also exhibited desirable performance for eliminating other emerging contaminants and enduring catalytic activity and stability in PMS activation without regeneration. This study provides new prospects in rational design of robust, cost-effective and self-cleaning/repairing three-dimensional Co-based macroscale-catalysts with an outstanding and lasting catalytic activity for water purification.
研究领域:
环境科学
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催化材料
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产品关联
DOI
高影响因子
APPLIED CATALYSIS B-ENVIRONMENTAL
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2018
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IF 11.698
Ruobai Li,Meixuan Cai,Zhijie Xie,Qianxin Zhang,Yongqin Zeng,Haijin Liu,Guoguang Liu,Wenying Lv
A copper ferrite modified graphitic carbon nitride (CuFe 2 O 4 /g-C 3 N 4 ) nanocomposite was successfully synthesized for the utilization as a visible-light responsive photocatalyst. The as-synthesized catalysts were characterized using X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), UV–vis diffuse reflectance spectra (UV–vis/DRS), photoluminescence (PL) analysis, and an electrochemical workstation. Compared to g-C 3 N 4 and CuFe 2 O 4 , the CuFe 2 O 4 /g-C 3 N 4 composites possessed excellent photocatalytic performance for the destruction of propranolol (PRO). A removal efficiency of 82.2% was achieved with 1 g/L catalyst and 1 mM peroxydisulfate (PDS) under visible light irradiation (λ < 420 nm) within 120 min. The g-C 3 N 4 coupled with CuFe 2 O 4 improved the capacity for visible light capture, whereas the presence of PDS enhanced the transfer of photogenerated electron. Quenching experiments and electron spin resonance (ESR) suggested that the reactive oxygen species (ROS) were superoxide radicals (O 2 − ), h + , hydroxyl radicals ( OH), and sulfate radicals (SO 4 − ). Moreover, the byproducts of PRO were investigated by HPLC-MS/MS, and the transformation pathways under the Vis/g-C 3 N 4 /CuFe 2 O 4 /PDS process were tentatively proposed based on the intermediates. The research provided a potential approach of CuFe 2 O 4 modified g-C 3 N 4 as a photocatalyst combined with PDS for the treatment of contaminated water.
研究领域:
环境科学
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材料科学
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产品关联
DOI
高影响因子
SCIENCE OF THE TOTAL ENVIRONMENT
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2018
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IF 4.61
Tao Zeng,Shuqi Li,Jianan Hua,Zhiqiao He,Xiaole Zhang,Hongru Feng,Shuang Song
Nanocarbon materials are emerging as alternative activators of peroxymonosulfate (PMS) for organics decomposition. However, the relatively low activity and complex syntheses hindered their practical application and innovation with respect to rational design of carbocatalysts is highly desired. Herein, an in situ replication and transformation strategy was employed to facilely convert porous Fe 3 O 4 microspheres into novel Fe/N codoped large-pore mesoporous carbon spheres (M‑Fe/NC) as Fenton-like catalysts for PMS activation . Benefiting from the abundance of active sites induced by dual heteroatom doping, the enhanced active site exposure due to the unique mesoporous structure, and the high stability of carbon component, the derived M‑Fe/NC was superior to the pristine Fe 3 O 4 for PMS activation to degrade various organics and was efficient over a wide pH range (2–9). Compared with the proposed mechanisms of previous reports, both radical (surface-bound SO 4 − and OH) and nonradical ( 1 O 2 and direct oxidation) pathways are involved in the M‑Fe/NC/PMS system. Furthermore, experimental observations in combination with DFT calculations reveal that graphitic N and Fe N 4 sites serve as dual reaction centers in the catalysis. This research opened an avenue for development of novel multi-doped carbocatalysts used to activate PMS for sustainable remediation.
研究领域:
环境科学
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材料科学
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产品关联
DOI
PubMed
高影响因子
APPLIED SURFACE SCIENCE
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2021
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IF 6.707
Wen Ge,Kong Liu,Shukang Deng,Lanxian Shen,Peizhi Yang
Construction of heterostructure is an efficient approach to improve the photocatalytic performance of catalysts. Herein, the Bi 6 Fe 1.5 Co 0.5 Ti 3 O 18 (BFCTO) nanoplates are successfully loaded on g-C 3 N 4 nanosheets by a facile chemical process for the first time. The photocatalytic activity of all g-C 3 N 4 /BFCTO catalysts are measured by the degradation of Rhodamine B (RhB) under visible-light irradiation. The results display that g-C 3 N 4 /BFCTO heterojunctions exhibit greatly improved photocatalytic activity compared with corresponding bare g-C 3 N 4 and BFCTO catalysts. Based on the experimental results of photocurrent responses, EIS and ESR, it is clearly demonstrated that the improved activity is attributed to the formation of Z-scheme photocatalyst. The g-C 3 N 4 /BFCTO-2 heterojunction showed the optimal photocatalytic activity with the photodegradation efficiency of 84.9% within 20 min. We hope that the work can provide a new insight for exploring Bi n +1 Fe n −3 Ti 3 O 3 n +3 -based Z-scheme heterojunction for pollutant degradation and environment restoration.
研究领域:
材料科学
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环境科学
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产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
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2020
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IF 10.652
Qiuxiang Xu,Qizi Fu,Xuran Liu,Dongbo Wang,Yanxin Wu,Yifu Li,Jingnan Yang,Qi Yang,Yali Wang,Hailong Li,Bing-Jie Ni
Potassium permanganate (KMnO 4 ), one typical strong oxidant, is used extensively in various applications. However, its impact on anaerobic fermentation of waste activated sludge is unknown. This paper therefore aims to investigate its effect on generation of short-chain fatty acids (SCFAs) and qualities of fermentation liquor and fermented solid sludge. Experimental results showed that when KMnO 4 increased from 0 to 0.1 g/TSS, the highest SCFAs production enhanced from 33.9 to 251.8 mg COD/g VSS. The mechanism analysis revealed that KMnO 4 addition increased the disintegration of sludge cells and the degradation of substantial recalcitrant organics in sludge such as humus and lignocellulose, thereby provided more substances for SCFAs generation. Ultraviolet absorption spectroscopy analysis showed that KMnO 4 addition destroyed unsaturated conjugated bonds and decreased organics aromaticity, thereby promoting humus and lignocellulose degradation. GC/MS analyses showed that several micro-molecular substances (e.g., acid-like, alkane-like, and alcohol-like organics) were generated from KMnO 4 pretreated humus and lignocellulose, and some of them were demonstrated to serve as substrates to produce SCFAs. The enzyme activity and model-based analyses showed that although KMnO 4 restrained all the microorganisms to some extends, the activities of SCFAs generators were much higher than those of SCFAs consumers. In addition, the sludge mixture was separated into liquid and solid fraction after anaerobic fermentation, and the components in fermentation liquid and solid sludge were tested. It was found that the addition of KMnO 4 effectively reduced the categories and total detected frequency of refractory organic pollutants in fermentation liquid, which improved the quality of the produced SCFAs. KMnO 4 addition also increased the inactivation of fecal coliforms and degradation of emerging contaminants in fermented sludge, which were helpful to its final disposal.
研究领域:
环境科学
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微生物学
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DOI
高影响因子
APPLIED CATALYSIS B-ENVIRONMENTAL
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2024
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IF 20.2
Qingsong Zhang,Qimou Deng,Yaoyao Zhang,Yang Xiao,Chunlei Zhang,Haiyi Gong,Qingming Zeng,Qingyan Zhang,Qingyi Zeng
Unavoidable organics in uranium wastewater or contaminated waters derive great challenges to traditional uranium removal techniques. Here, a drivingpower enhanced photocatalytic fuel cell (DEPFC) is designed by using a carbon felt (CF)-based UiO-66-NH 2 derived zirconia (ZrO 2 )/N-doped porous carbon (ZrON-C/CF) cathode and a monolithic photoanode, composing of a front FTO glass-based BiVO 4 film and a rearmounted Si photovoltaic cell, for effectively oxidizing organics and simultaneously reducing UO 2 2+ from complex wastewater under sunlight illumination. The water contact angle measurements demonstrate that ZrO 2 can improve the hydrophilia of cathode thus increases the contact between UO 2 2+ and cathode. The density functional theory indicates that N-doping can enhance the electronegativity of cathode and increases UO 2 2+ adsorption. Meanwhile, the enhanced UO 2 2+ reduction facilitates the charge separation in BiVO 4 film, therefore enhancing the organic oxidation. Consequently, under AM 1.5 illumination, the designed DEPFC can remove almost 100% of UO 2 2+ and simultaneous degrade 99% organics within 40 min
研究领域:
环境科学
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材料科学
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产品关联
DOI
高影响因子
Journal of Water Process Engineering
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2025
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IF 6.7
Liping Qiu,Fanduo Meng,Qi Qiu,Xinwei Kang,Shuai Gong,Fengxia Zhang,Jingtao Xu,Feihong Wang,Daoji Wu,Xuewu Zhu
Membrane fouling represents a substantial barrier to the progress of ultrafiltration membranes. The catalytic membrane integrates ultrafiltration with advanced oxidation processes; this provides an efficient solution to mitigate membrane fouling. In this study, CoFe 2 O 4 nanoparticles were integrated into polyvinylidene fluoride (PVDF) to develop a novel composite ultrafiltration membrane (PVDF@CoFe 2 O 4 ). The chemical composition, surface morphology, filtration performance, and catalytic ability of the synthesized PVDF@CoFe 2 O 4 membranes were systematically assessed. The hydrophilicity of the PVDF@CoFe 2 O 4 membrane was enhanced, and its water flux increased by up to 1.4 times using CoFe 2 O 4 doping. The PVDF@CoFe 2 O 4 membrane demonstrated the lowest degree of irreversible fouling and superior stability. In the presence of peroxomonosulfate (PMS), the 2.5 wt% PVDF@CoFe 2 O 4 membrane achieved a norfloxacin (NOR) removal efficiency of 82.5 % within 120 min; this value significantly exceeded the 17.82 % efficiency recorded for the pristine PVDF membrane. The synergistic effect of SO₄ •- and •OH led to the conversion of natural organic matter (NOM) into smaller molecules following oxidation, thereby enhancing the antifouling performance of the membrane. These findings provide a promising approach for mitigating NOM-induced membrane fouling in natural surface water.
研究领域:
环境科学
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材料科学
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产品关联
DOI
高影响因子
APPLIED SURFACE SCIENCE
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2024
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IF 6.3
Hongli Fang,Yuanqing Kang,Shaotang Yuan,Miaomiao Zhang,Zebao Rui
Titanium dioxide (TiO 2 ) is a widely used low-cost and stable photocatalyst, but its wide bandgap and low quantum efficiency usually lead to poor photocatalytic performance. Herein, one-step solid state calcination and reduction method was proposed for simultaneously introducing surface defects and loading Ag nanoparticles (NP) on TiO 2 . The as-obtained black TiO 2-x supported Ag NP (or Ag/TiO 2-x ) holds a narrow bandgap to respond to the full solar spectrum due to the presence of high concentration surface vacancies, enhanced light absorption through the surface plasmon resonance effect of Ag NP, and satisfactory photothermal effects. Moreover, such a one-step solid state synthesis method leads to closely linked interface and enhanced charges transfer between Ag NP and TiO 2-x . Accordingly, Ag/TiO 2-x exhibits robust photothermal synergistic VOCs degradation performance with a toluene degradation rate 6 times higher than the reference Ag/TiO 2 (DP) prepared by the conventional solution method.
研究领域:
材料科学
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环境科学
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产品关联
DOI
高影响因子
JOURNAL OF HAZARDOUS MATERIALS
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2023
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IF 13.6
Zhenzhan Xu,Xiaolin Ma,Fengting He,Mingjie Lu,Jinqiang Zhang,Shuaijun Wang,Pei Dong,Chaocheng Zhao
Electro-Fenton (EF) is considered to be an effective technology for the purification of organic wastewater containing antibiotics, but the construction of accessible and efficient heterogeneous EF catalytic materials still faces challenges. In this study, an iron foam-derived electrode (FeO x /if-400) was prepared by a simple method (chemical oxidation combined heat treatment). The fabricated electrode presented great EF degradation efficiency under wide pH range (almost completely removing 50 mg L −1 TNZ within 60 min) and maintained great stability after consecutive operation (>95% removal after six cycles). Also, the FeO x /if-400 electrode showed good purification ability for pharmaceutical wastewater as evaluated by the quadrupole time-of-flight mass spectrometry and the three-dimensional excitation-emission matrix fluorescence spectroscopy . Based on experimental results, characterization analysis, and density functional theory (DFT) calculations, the EF reaction mechanism of FeOx/if-400 electrode and the organics degradation pathways in simulated and real matrices were proposed. Significantly, the biotoxicity assessment of the degradation intermediate products was revealed by ECOSAR software and relative inhibition of E. coli , which fully proved the environmental friendliness of the EF process by the FeO x /if-400 cathode. This work provides a green and effective EF system, showing a promising application potential in the field of organic wastewater treatment containing antibiotic contaminants.
研究领域:
环境科学
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材料科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Journal of Water Process Engineering
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2024
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IF 6.3
Bingkun Liu,Ruoyu Li,Beibei Liu,Guanghui Wang,Jiayu Sun,Hongda Huang,Hengzhen Shi,Jingtao Zhang
Z-scheme WO 3 /AgI heterojunctions on carbon fiber (CF) cloth were fabricated through in-situ hydrothermal method and chemical bath deposition route. The CF@WO 3 /AgI cloth achieved highly efficient photocatalytic abilities under visible light , which could eliminate 95.7 % of Rhodamine B (RhB) in 70 min and 70.0 % of tetracycline hydrochloride (TC-HCl) in 110 min, superior to those of CF, CF@WO 3 and CF@AgI cloths. Moreover, the catalyst was able to achieve 7.0 ± 0.16 log 10 CFU/mL reduction of E. coli cells within 40 min. Recycling test confirmed the repeatability and stability of CF@WO 3 /AgI cloth. The enhanced photocatalytic performance was attributed to the increased visible light utilization, accelerated charge carriers separation and high photo-redox capabilities which came from the formation of Z-scheme heterojunction. This work provided inspiration for the construction of high-efficiency flexible photocatalysts for environmental decontamination .
研究领域:
环境科学
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材料科学
✓ 已验证
产品关联
DOI
高影响因子
APPLIED SURFACE SCIENCE
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2022
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IF 7.392
Xue Gao,Kai Zheng,Qiyan Zhang,Xiaoqing Cao,Shan Wu,Jixin Su
In this work, the TiO 2 -RGO/LDHs photocatalyst was synthesized by a hydrothermal method using GO/LDHs as substrates. The structure and property of prepared materials were characterized via XRD, SEM, EDS, XPS, TEM, UV–vis spectroscopy, etc. Toluene, methanol, and ethyl acetate were selected as typical volatile organic pollutants model pollutants to examine the photocatalytic degradation effect of TiO 2 -RGO/LDHs. The photocatalytic efficiency of the TiO 2 -RGO/LDHs system was further investigated in contaminated air (NOx = 20 ppm). The results indicated that the prepared TiO 2 -RGO/LDHs nanocomposite possess better photodegradation activity than pure TiO 2 and TiO 2 -RGO samples, and the photocatalyst has excellent application for the elimination of three kinds of VOCs. The photochemical and materials characterization revealed that the graphene has enlarged the light response range and inhibited the recombination of electron-hole pairs of TiO 2 . Meanwhile, LDHs can offer more hydroxide ions to accelerate the oxidation reaction, resulting in more radicals and better pollutants degradation.
研究领域:
环境科学
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材料科学
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）