RARE METALS
·
2025
·
IF 11
Wang Dan-Dan,Xu Meng-Yang,Lin Zhao-Xin,Wu Jia-Hui,Yang Wei-Ting,Li Hong-Ji,Su Zhong-Min
The goal of photocatalytic CO 2 reduction is to obtain a single energy-bearing product with high efficiency and stability. Consequently, constructing highly selective photocatalysts with enhanced surface and optoelectronic properties is crucial for achieving this objective. Here, we have developed a simple one-pot vulcanization method to synthesize a MIL-68(In)-derived CdIn 2 S 4 /In 2 S 3 heterojunction that exhibited stable and high selectivity. Multiple characterizations of the CdIn 2 S 4 /In 2 S 3 heterojunction revealed a hierarchical tubular structure with numerous surface reactive sites, a high visible-light utilization rate ( λ < 600 nm), efficient charge separation, and a prolonged charge-carrier lifetime. Moreover, an S-scheme charge transfer mechanism, based on the interleaved band between the two components, improved the reduction capability of the electrons. Benefiting from the compositional and structural synergy, the yield CO by CdIn 2 S 4 /In 2 S 3 -250 (CI-250) reached 135.62 μmol·g −1 ·h −1 , which was 49.32 times and 32.88 times higher than that of In 2 S 3 and CdIn 2 S 4 , respectively. The CdIn 2 S 4 /In 2 S 3 heterojunction exhibited a quantum efficiency of 4.23% with a CO selectivity of 71%. Four cycle tests confirmed the good stability and recyclability of the CI-250. This work provides a new approach for designing and preparing high-performance hollow MOFs-based photocatalysts for scalable and sustainable CO 2 reduction.
研究领域:
材料科学
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环境科学
·
化学工程
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DOI
高影响因子
JOURNAL OF POROUS MATERIALS
·
2021
·Vol. 29
·期 1
·181-192
·
IF 2.496
Wang Li,Zhou Yu,Xu Qi,Wu Xian-Kun,Xu Guo-Dong,Guo Ji-Xiang,Fang Dong
The development of high efficient and cost-effective photocatalysts for organic matters degradation and hydrogen evolution is of great importance. In this study, heterojunction photocatalysts based In 2 S 3 and MIL-68(In) were synthesized by hydrothermal method. These composites exhibit excellent bi-functionality of photocatalytic Rhodamine B degradation and hydrogen evolution. And it was found that the photocatalytic performance of the composites was dependent on the ratio of In to S. The optimum catalyst In 2 S 3 /MIL-68(In)-1.5 exhibits much enhanced photocatalytic performance, offering a removal efficiency of 94.7% within 30 min for 20 ppm of Rhodamine B and a hydrogen evolution rate of 1618.8 µmol h −1 g −1 as a result of the synergist effect of heterojunction between the two components, promoting the charge separation. Besides, the mechanisms for photocatalytic degradation of Rhodamine B and photocatalytic hydrogen evolution were also proposed. This protocol could provide guiding information on the development of other functional photocatalysts.
研究领域:
材料科学
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环境科学
·
化学工程
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DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
·
2024
·Vol. 35
·期 22
·1-15
·
IF 2.8
Zhang Xue-Feng,Fu Yun-Xuan,Wang Jun-Chuan,Li Xiao-bing,Zhao Zhao-Ye,Wu Xiang-Feng,Wang Hui,Ci Li-jie
The In 2.77 S 4 /In-MOFs Z-scheme heterojunction composite photocatalysts were successfully synthesized via an insitu hydrothermal growth method. The chemical structure, morphology, optical properties, and photogenerated carriers transfer behavior of the as-prepared In 2.77 S 4 /In-MOFs composites were characterized in details. The In 2.77 S 4 /In-MOFs (10 wt%) composite showed the optimal photocatalytic degradation efficiency of 95.9% in 90 min for the tetracycline (TC) model pollutant, which was significantly higher than that of pure In 2.77 S 4 (75.1%) and In-MOFs (9.7%). The X-ray photoelectron spectrometer (XPS), photoelectrochemical, and electron paramagnetic resonance (EPR) technique were carried out to illuminate the photocatalytic degradation mechanism of In 2.77 S 4 /In-MOFs (10 wt%) for TC, which showed that the Z-scheme heterojunction structure of In 2.77 S 4 /In-MOFs (10 wt%) could reinforced the light harvesting capacity and promote the photogenerated carrier migration under visible light irradiation. Furthermore, the photogenerated holes play a major role during the photocatalytic degradation reaction. Finally, this work maybe offers an effective method for the designing In 2.77 S 4 -based Z-scheme heterojunctions to facilitate the charge carrier transfer in heterogeneous catalysts.
研究领域:
材料科学
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环境科学
·
化学
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产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2022
·
IF 10.383
Qiufan Sun,Yuxiang Zhu,Xiang Zhong,Meng Jiang,Yanchen Fan,Jianfeng Yao
In this work, MIL-68(In) functionalized with various ligand substitutions including amine, hydroxyl, bromine, nitro, and methyl groups was prepared, via a one-pot solvothermal reaction for visible-light photocatalytic ammonia synthesis. The diversity of ligands tunes the morphology, geometry, pore environment, and electronic structure of MIL-68(In)-based photocatalysts due to the polarity and intraframework interactions. Amine-inserted MIL-68(In) outperforms its counterparts, presenting a boosted nitrogen photofixation rate of 140.34 μmol gcat–1 h–1 with an apparent quantum efficiency of 5.69% at 420 nm. Further, the size of the batch solvothermal reactor and the amine group content also influence the photocatalytic activity. The combined experimental and theoretical results reveal that amine substituents improve the chemisorption of nitrogen molecules and the conversion of nitrogen into ammonia follows a dual pathway, i.e., a Mars–van Krevelen process and a ligand-to-metal charge transfer mechanism. This work provides a molecular engineering strategy via dual catalysis toward efficient ammonia production.
研究领域:
材料科学
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化学工程
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环境科学
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产品关联
DOI
PubMed
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2013
·
IF 2.108
Huili Wang,Wenxia Liu,Xiaofan Zhou,Haidong Li,Kaifeng Qian
Alkenyl succinic anhydride (ASA) is an oily paper sizing agent that is generally introduced into the paper manufacturing system as an ASA-in-water emulsion. In this paper, ASA-in-water emulsions are prepared by homogenizing the mixture of ASA and aqueous dispersion of Laponite modified with alanine . The modification of Laponite with alanine reduces the emulsion droplet size, and enhances the emulsion stability against coalescence due to lowering the interfacial tension between ASA and water containing Laponite and improving the affinity of Laponite particles toward ASA. Infrared spectrum analysis indicates that the adsorption of alanine on the Laponite particles retards the hydrolysis of ASA when the alanine-modified particles are employed to stabilize ASA emulsions. Meanwhile, the sizing efficiency of the as-prepared ASA emulsion is also improved by the modification of Laponite with alanine, and more dependent on emulsion droplet size than on the hydrolysis of ASA.
研究领域:
化学工程
·
材料科学
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产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2023
·
IF 15.1
Changcheng Cui,Junjie Fu,Dongxing Kou,Yimeng Li,Hao Wei,Zucheng Wu,Wenhui Zhou,Zhengji Zhou,Shengjie Yuan,Yafang Qi,Shuping Pang,Zhipeng Shao,Sixin Wu,Guanglei Cui
The Cu 2 ZnSn(S,Se) 4 solar cells (CZTSSe) are emerging as a hot area of low-cost thin film photovoltaic technology owing to its non-toxicity and excellent photoelectric properties. However, the large open-circuit voltage deficit ( V oc,deficit ) caused by the inherently defective CdS/ CZTSSe heterojunction interface is still a huge challenge for improving power conversion efficiency. Herein, we reconstruct the heterojunction interface by inserting a CZTSSe:In into the CdS/CZTSSe heterojunction through an In 2 Se 3 post-deposition treatment. The local occupation of In 3+ at Zn 2+ and Sn 4+ sites decreases the disordered Zn- and Sn-related deep defects and generates benign In Zn donors within CZITSSe transition layer simultaneously, which effectively enhances the surface p-to-n conversion. The combination of chemical and field-effect passivation regulates the charge extraction and passivates the charge recombination. As a result, the In element-buried absorber enables the V oc boost from 488 to 527 mV with an impressive active-area efficiency of 13.59 %. These results demonstrate the great potential of the In element-buried absorber in alleviating the V oc,deficit and enhancing the performance of CZTSSe solar cells.
研究领域:
材料科学
·
光伏技术
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DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2023
·
IF 8.6
Boyi Yan,Zhongqiao Sun,Yide Han,Hao Meng,Xia Zhang
The construction of a tightly contacted heterojunction consisting of multi-components is proven to be one of the effective strategies to promote the photogenerated charges separation and to develop high-efficient photocatalysts in hydrogen evolution . Herein, a ternary hollow heterostructure of ZnS/ZIS/In 2 S 3 has been fabricated by using a binary MOF@MOF (ZIF-8@MIL-68(In)) as the precursor, and an in-situ sulfurization of ZIF-8@MIL-68(In) is controlled to optimize the photocatalytic performances. The resulting samples are signed as Z@M- t , where the t is pointed to the sulfurization time being varied from 4 h to 48 h. It’s shown that the hierarchical and hollow architecture is formed for Z@M- t , and with the reinforced light harvest ability in both UV and visible light regions. In the subsequent visible-light-induced photocatalytic hydrogen generation, the optimized Z@M-24 manifests significantly improved hydrogen evolution rate of 607.34 μmol g -1 h −1 , which values are evidently higher than that by the single MOF and binary ZIF-8@MIL-68(In) heterostructure. The electrochemical analyses and the electron paramagnetic resonance (EPR) spectrum were analyzed to clarify the charge transfer routes and the enhanced photocatalytic mechanism, in which the contribution of each metal sulfide is also discussed. Finally, the good photocatalytic stability and reusability of Z@M-24 heterostructure are also represented, which define the structure superior brought by the effective heterojunction based on the in-situ sulfurization strategy of binary ZIF-8@MIL-68(In), and determine their prospect applications in the efficient H 2 production under visible light irradiation.
研究领域:
材料科学
·
化学
·
光催化
·
纳米技术
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产品关联
DOI
高影响因子
Progress in Natural Science-Materials International
·
2024
·
IF 4.8
Shijia Liu,Haibin Wang,Xi Wang,Jieshu Zhou,Hongyan Liang
Electroreduction of CO 2 for formic acid production has been regarded as an efficient option for CO 2 utilization. However, under high current, achieving high selectivity for formic acid is challenging, which cannot meet industrial demands. Herein, we reported a type of Bi/In(OH) 3 (BIO) heterojunction reconstructed from Bi 2 S 3 /In(OH) 3 during electrochemical process, in which In(OH) 3 was applied to modulate the electronic structure of Bi. This strategy efficiently enhanced the ∗OCHO intermediates adsorption and lead to a decent selectivity towards formic acid under high current density. BIO displays faraday efficiency of formic acid beyond 95 % across a wide range current density of 200–400 mA cm −2 , where the highest value reached 97.7 % at 400 mA cm −2 . This work clarified the mechanism of CO 2 electroreduction to HCOOH on heterojunction, guiding the design of advanced catalysts.
研究领域:
材料科学
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电化学
·
催化反应
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产品关联
DOI
高影响因子
Chemical Engineering Journal Advances
·
2020
·
IF 0
Jiuhu Zhao,Zhengzhong Wen,Rongshu Zhu,Zhi Li,Ran Ding,Yongji Zhu,Tingkun Gu,Rong Yang,Zhenye Zhu
In this paper, In-metal oxide/H-Beta catalysts were synthesized by ion exchange method and In-Co 3 O 4 /H-Beta exhibited the highest catalytic activity for the selective catalytic reduction of NO x with CH 4 in presence of H 2 O and SO 2 . Thus, the synthesis conditions of In-Co 3 O 4 /H-Beta were optimized. The results showed that In-Co 3 O 4 /H-Beta exhibited excellent catalytic performance and high CH 4 selectively when the synthesis was carried out by ion exchange method, the ratio of Si and Al in H-Beta was 25, the ratio of Co 3 O 4 and H-Beta was 5:40, the concentration of ion exchange liquid was 0.033 M and calcination temperature was 500 °C. The NO x removal efficiency was about 87.6 % and N 2 selectivity could reach 96.3% in the presence of H 2 O and SO 2 . Through a series of characterizations, it was concluded that In-Co 3 O 4 /H-Beta owned stable catalyst structure, abundant Brønsted acid sites and the highest ratio of InO + /In 2 O 3 under the optimal synthesis conditions. In addition, the doped of Co 3 O 4 could inhibit the adsorption of sulfate species on the surface of In/H-Beta catalyst, leading to the excellent H 2 O and SO 2 resistance property.
研究领域:
环境科学
·
催化化学
✓ 已验证
DOI
RSC Advances
·
2015
·Vol. 6
·期 6
·4329-4334
·
IF 3.84
Jikui Wang,Jiahong Guo,Pengxiang Si,Wanping Cai,Yuming Wang,Genhua Wu
An In(OH)3–PDMS sponge has been synthesized by covalent modification of PDA. The sponge can switch surface wettability reversibly between superhydrophobicity and superhydrophilicity when detecting ammonia. The water contact angle changes from 141.5° to 0° after storage in an ammonia atmosphere, which means an ammonia responsive surface wettability switch. The minimum NH3·H2O concentration that the In(OH)3–PDMS can detected is 5% in 2 h. This kind of quick and sensitive ammonia detector is promising simply by virtue of the surface wettability conversion.
研究领域:
材料科学
·
化学工程
·
环境监测
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产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
·
2020
·
IF 4.939
Hongmei Zhao,Tingting Zhang,Dongyu Shan,Ying Zhu,Ge Gao,Ye Liu,Jing Liu,Meiying Liu,Wansheng You
An intervening barrier for photocatalytic water decomposition and pollutant degradation is the frustratingly quick recombination of e − - h + pairs. Delicate design of heterojunction photocatalysts by coupling the semiconductors at nanoscale with well-matched geometrical and electronic alignments is an effective strategy to ameliorate the charge separation. Here a facile and environment-friendly l -cysteine-assisted hydrothermal process under weakly alkaline conditions is demonstrated for the first time to fabricate ZnIn 2 S 4 /In(OH) 3 hollow microspheres with intimate contact, which are verified by XRD, SEM, (HR)TEM, XPS , N 2 adsorption-desorption, UV–Vis DRS and photoluminescence spectra. ZnIn 2 S 4 /In(OH) 3 heterostructure (L-cys/Zn 2+ = 4, molar ratio) with a band-gap of 2.50 eV, demonstrates the best photocatalytic performance for water reduction and MB degradation under visible light, outperforming its counterparts (In(OH) 3 and ZnIn 2 S 4 ). The excellent activity of ZnIn 2 S 4 /In(OH) 3 heterostructure arises from the intercrossed band-edge positions as well as the unique hollow structure with large surface area and wide pore-size distribution, which are beneficial for the efficient charge migration from bulk to surface as well as at the interface between ZnIn 2 S 4 and In(OH) 3 . This work provides an efficient and eco-friendly strategy for one-pot synthesis of heterostructured composites with intimate contact for photocatalytic application.
研究领域:
材料科学
·
环境科学
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产品关联
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2024
·
IF 5.1
Congxue Su,Haiyan Che,Wenlong Tao,Yang Yang,Ruijuan Wang,Zhaohui Wang,Xingliu Qin,Haibin Li,Jun Fan,Liang Fang
Orthorhombic olivine-structured LiMSiO 4 (M = Ho, In) ceramics were synthesised using the solid-state reaction. Promising microwave dielectric properties of ε r = 10.04, τ f = 23.3 ppm/°C and a high-quality factor ( Q × f ) of 11,415 GHz for LiHoSiO 4 were obtained at 1050 °C, and ε r = 7.78, τ f = −46.8 ppm/°C and Q × f = 23,390 GHz for LiInSiO 4 were achieved at 1140 °C. According to the bond valence result, Ho 3+ presented a slightly compressed state but Li + and Si 4+ exhibited a strong rattling state in LiHoSiO 4 , which led to higher ε r than the ε theo . The integrated effect of rattling cations (Li + and In 3+ ) and a compressed cation (Si 4+ ) in LiInSiO 4 resulted in a small positive deviation Δ ε r . The larger packing fraction of LiInSiO 4 contributed to a higher Q × f than LiHoSiO 4 . The Si–O bond in both ceramics played a leading role in influencing the Q × f according to the Phillips−Van Vechten−Levine chemical bond theory.
研究领域:
材料科学
·
无机化学
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产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）