CHEMOSPHERE
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2021
·
IF 7.086
Fenglei Liu,Shan Hua,Chao Wang,Baowei Hu
Herein, using dialdehyde waste paper (DAWP) as a cross-linking agent to immobilize persimmon tannin (PT) was first used to remove the U(VI) and Cr(VI) via the “waste control by waste” concept. The microscopic and macroscopic surface properties of the as-prepared adsorbent was characterized by the advanced characterization techniques. Factors that affected the elimination process such as variable pH, coexistence ions and equilibrium time were investigated by batch techniques. The results showed that the maximal removal capacities of U(VI) and Cr(VI) on DAWP-PT were 242.3 mg/g (pH = 6.0) and 178.7 mg/g (pH = 2.0) at 298 K, which exhibited competitiveness with most of the reported solid materials. Meanwhile, adsorption data were fitted perfectly to the Langmuir and Pseudo-second-order equations, which indicated that the monolayer and homogenous chemisorption dominated the removal process. The SEM-EDX, DFT and XPS analysis conformed that adsorption of U(VI) was mainly via surface complexation, while the elimination of Cr(VI) was a redox reaction process, and about 65.33% of Cr(III) and 34.67% of Cr(VI) co-existed onto the surface of DAWP-PT. Thus, this study would provide a high-efficiency and low-cost adsorbent for radionuclide and heavy metal treatment.
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
CARBOHYDRATE POLYMERS
·
2018
·
IF 5.158
Zhanying Li,Lin Shao,Zehai Ruan,Wenbin Hu,Lingbin Lu,Yongjun Chen
The utilization of waste paper, an obsolete recyclable resource, helps to save resources and protect environment. In this paper, an aerogel was prepared to convert the waste paper into a useful material, which was used to adsorb heavy metal ions and handle water pollution. Combining waste office paper and chitosan, the aerogel obtained the enhanced mechanical strength, acid resistance and high adsorption capacity (up to 156.3 mg/g for Cu 2+ ). This adsorption process obeyed the pseudo-second order model and the Langmuir model. The research showed that a coordination compound was formed between amino group and Cu 2+ during the adsorption process. The adsorbent could be regenerated well in 0.1 M H 2 SO 4 with up to 98.3% desorption efficiency. The low cost, environmental friendliness, excellent adsorption capacity and regeneration ability made this novel aerogel a promising adsorbent for heavy metal ions. And this conversion is an effective reuse way of waste paper too.
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
LANGMUIR
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2022
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IF 4.331
Jiwei Huang,Dandan Li,Langhuan Huang,Shaozao Tan,Ting Liu
In recent years, the discharge of industrial waste oil has increased and offshore oil leakage has occurred frequently, and thus water pollution has become a worldwide problem that attracts much attention. In this regard, a kind of oil-absorbing material with high oil-absorbing property and good mechanical property is urgently needed. Here, we reported a new type of aerogels with three-dimensional layered voids using natural bamboo powder, waste paper (WP), and graphene oxide (GO) as raw materials. The obtained aerogel had high adsorption capacity (87–121 g/g), compressibility, and high elasticity, which can separate oil from water and selectively absorb oil. This study provides not only a new treatment in agricultural waste treatment but also a facile, green, and low-cost approach to synthesize high-performance graphene-based oil absorbers, which might give us an effective solution for oil pollution of water resources worldwide.
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
PubMed
高影响因子
ENERGY
·
2021
·
IF 7.147
Chao Wang,Zhiqiang Jiang,Qingbin Song,Mingzheng Liao,Jiahong Weng,Rui Gao,Ming Zhao,Ying Chen,Guanyi Chen
Urgent need for waste disposal and renewable energy have opened up promising pathways for renewable and sustainable fuel production to substitute traditional fossil fuels. In this study, catalytic co-pyrolysis of waste paper (WP) and polyvinyl chloride (PVC) as typical municipal solid wastes was experimentally investigated towards hydrogen-rich syngas production . Results indicated the maximum H 2 yield (429 μmol·g cat −1 ·min −1 ) was obtained with 60% PVC weight ratio under 900 °C which was higher than single component pyrolysis . Higher hydrogen yield (681.76 μmol·g cat −1 ·min −1 ) appeared over Fe/CeO 2 –CaO under the optimal conditions compared to that of Ru/ZSM-5-CaO (445.54 μmol·g cat −1 ·min −1 ). From the calculated non-isothermal kinetic parameters , both catalysts could reduce activation energies. Proper porous structure and CaO content in the catalyst could enhance hydrogen production via carbon species fixation.
研究领域:
能源科学
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环境工程
✓ 已验证
DOI
高影响因子
MOLECULES
·
2024
·Vol. 29
·期 22
·5266
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IF 4.2
Jun Zhou,Pin Lv,Binsheng He,Jingjing Wu,Gao Wang,Hongzhi Ma,Yueyao Wang,Guiyun Chen
Suitable fermentation substrates and fermentation modes can effectively improve the fermentation ethanol yield. In this study, we optimised the hydrothermal pretreatment conditions by orthogonal optimisation using waste tissue paper as substrate. These conditions consisted of 50 min duration in a high-pressure reactor with pure water as solvent at a temperature of 160 °C. The biomass to water ratio was maintained at a constant level. The cellulose content of the pretreated TP was 81.19 ± 4.06%, which was an increase of 21.59% compared to the blank control. The 72 h reducing sugar yield of pretreated TP was 0.61 g sugar/g paper, which was 38.64% higher than that of untreated TP. Subsequently, the pretreated TP was fermented under optimal conditions. The mixed group of Saccharomyces cerevisiae andCandida shehatae(SC) showed a distributed saccharification fermentation pattern, with an ethanol yield of 28.11 g/L in 72 h. On the other hand, the single Saccharomyces cerevisiae (S) exhibited a homobloc saccharification fermentation pattern, with an ethanol yield of 35.15 g/L in 72 h.
研究领域:
生物工程
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发酵技术
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产品关联
DOI
PubMed
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2024
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IF 4.9
Yunyun Wang,Yonglan Huang,Jun Chu,Jian Ye,Yinhua Jiang,Jiangdong Dai
This study presents the synthesis of a novel lanthanum-modified cellulose-based carbon aerogel (La-CCA) from waste printing paper, aimed at addressing the issue of phosphate pollution in aquatic environments. The objective was to develop an effective and sustainable adsorbent to mitigate eutrophication caused by excess phosphates in water bodies. La-CCA exhibited a remarkable phosphate adsorption capacity, peaking at 44.32 mg/g under optimal conditions, demonstrating its efficiency as an adsorbent. The novelty of this work lies in the use of waste paper as a raw material, coupled with lanthanum modification, which enhanced adsorption performance through multiple mechanisms, including electrostatic interactions, ligand exchange, and inner-sphere complexation. The study also discussed the retention of the microfibrous structure of cellulose, contributing to the material’s stability and functionality. Comprehensive analyses including zeta potential, FTIR, and XPS elucidate the underlying adsorption mechanisms. La-CCA was demonstrated to be easily separable from solutions with minimal lanthanum leaching, particularly under conditions above pH 3.0, underscoring its potential for practical applications in phosphate removal from nutrient-enriched waters.
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
FOOD CHEMISTRY
·
2022
·
IF 9.231
Haili Sun,Juanjuan Feng,Jiaqing Feng,Mingxia Sun,Yang Feng,Min Sun
In order to develop environmentally friendly, economical and facile preparation method of carbon aerogels (CAs), the waste printing paper as the raw material was combined with graphene oxide and carboxylic multi-walled carbon nanotubes to produce CAs (ρ = 44 mg cm −3 ). The CAs with different composition were investigated, the addition of graphene oxide led to the reduction of adsorption sites and the reduction of extraction performance. But the carbon nanotubes made CAs have a better pore structure. The CAs as adsorbent were loaded into a pipette-tip for solid-phase extraction of hexaconazole and diniconazole. Coupled with gas chromatography, an analytical method was established under the optimized conditions. The limits of detection were between 0.08 and 0.32 mg kg −1 , the linear ranges were 0.96–200.0 mg kg −1 and 0.24–200.0 mg kg −1 . The relative recoveries were in the range of 81.0–119%. The results indicated that the method had potential application for the determination of triazole fungicides.
研究领域:
分析化学
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环境科学
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产品关联
DOI
PubMed
高影响因子
NEW JOURNAL OF CHEMISTRY
·
2021
·Vol. 45
·期 14
·6254-6262
·
IF 3.591
Yao Cong,Qiaoran Jin,Qi Huang,Zijie Xu
Multilayer graphene (MLG) is in situ formed in a matrix of amorphous carbon prepared from carbonized waste paper at 750 °C. The resulting samples are systematically characterized by morphology, spectroscopy, diffractometry, nitrogen adsorption–desorption and electrochemistry. The carbon structure with six layered graphene can be formed in a matrix of amorphous carbon at such a low temperature. The resulting sample displays a specific surface area of 862 m2 g−1, a meso-pore volume of 0.55 cm3 g−1 and a capacitance of 214 F g−1, which are correspondingly 2.16, 2.29 and 2.14 times higher than those of the sample prepared directly from carbonized waste paper. Although the sample displays the basic characteristics of amorphous carbon, MLG is mostly found to be formed around the regular nickel crystal face in the amorphous carbon matrix. It is also found that the formation of MLG can be affected by the coexistence of nickel crystals and sodium metal. The optimized porous structural characteristics, including the specific surface area, and the micro- and meso-pore volumes, result from the rearrangement of graphite microcrystallites, giving an improved capacitive performance.
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
JOURNAL OF HAZARDOUS MATERIALS
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2024
·
IF 12.2
Lina Ma,Daikun Li,Xing Chen,Hua Xu,Yu Tian
In this work, a sustainable 3D carbon aerogel (AO-WPC) is prepared from waste paper (WP), and used for efficient antibiotics removal from water. The AO-WPC aerogel shows good mechanical property and can recover after 100th of 30 % compression strain. The specific surface area of AO-WPC aerogel is up to 654.58 m 2 /g. More importantly, this aerogel reveals proper pore size distribution , including micro sized macropores between carbon fibers and intrinsic nano scale mesopores (11.86 nm), which is conducive to remove antibiotics from water. Taking tetracycline (Tc) as an example, the maximum adsorption capacity and adsorption rate of AO-WPC for Tc are as high as 384.6 mg/g and 0.510 g/(mg‧min), respectively, which exhibits significant advantages over most of the recent absorbents, and the adsorption toward Tc reveals good resistance to various environmental factors, including pH, various ions, and dissolved organic matter (DOM). Moreover, good thermal stability enables the AO-WPC aerogel to be regenerated through simple burning, and the adsorption capacity of Tc only decreases by 10.4 % after 10 cycles. Mechanism research shows that hydrogen bonding and π-π electron-donor-acceptor (EDA) interaction play the important role in the adsorption. The excellent mechanical property and adsorption performance imply good practical prospect of the AO-WPC aerogel.
研究领域:
环境科学
·
材料科学
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产品关联
DOI
PubMed
高影响因子
ACS Applied Materials & Interfaces
·
2020
·
IF 8.758
Longyang Li,Jingfang Zhu,Zhixiang Zeng
Recycling has attracted great attention in academia, because of the economic and environmental benefits to industry. An eco-friendly strategy for recycling office waste paper (WP) was used to sustainedly separate oil–water mixtures. The hydroxyl groups of cellulose endow WP with superlipophilic and superhydrophilic properties in air and superoleophobic features under water. WP could separate various oils from oil–water mixtures, with separation efficiencies exceeding 99%. Importantly, the superhydrophilic WP could separate oil–water mixtures containing HCl, NaOH, and NaCl with separation efficiency above 98.9% for at least 30 cycles. The superoleophobicity of WP was maintained in solutions of different pH values for at least 24 h, suggesting good durability and stability. This green method is renewable, clean, cost-effective, and environmentally friendly. More importantly, the recycled office waste paper not only removes oil from oily wastewater (such as in oil spills) but also realizes the recycling of WP. This method could provide new insights into resource recycling.
研究领域:
环境科学
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材料科学
·
化学工程
✓ 已验证
DOI
PubMed
高影响因子
Environmental Technology & Innovation
·
2024
·
IF 6.7
Yiping Jin,Zhongwen Zhou,Siji Chen,Chunjie Tian,Guang Chen
In this work, domestic refuse waste napkin (WN) was used as raw material, modified by different dyes and prepared to N-doped biochars via carbonation and activation methods. The results showed that the addition of dyes not only optimized the physicochemical properties of biochars, but also greatly improved the adsorption performances. The specific surface areas of N-doped biochars (BWN-CR, BWN-CV, and BWN-MO) were increased by 5.95–26.6 % compared with that of undoped biochar (BWN, 2173.13 m 2 /g), similarly, the content of nitrogen atoms in the modified biochars increased by 0.50–2.03 times. In the adsorption experiments using tetracycline hydrochloride as adsorption model, the adsorption capacities of all N-doped biochars (938.71–1159.05 mg/g) were greater than that of most adsorbents including BWN (861.33 mg/g). After 10 cycles of use, both all of the biochars can still maintain more than 65 % of the performance, indicating their stable regeneration ability. This work not only prepared a series of biochars that can be used to efficiently remove antibiotics from water, but more importantly provided a new strategy for the high-value utilization of WN and further released the application potential of secondary resources.
研究领域:
环境科学
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材料科学
·
生物技术
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
·
2017
·
IF 3.012
Haibo Su,Pengli Zhu,Leicong Zhang,Fengrui Zhou,Gang Li,Tingxi Li,Qing Wang,Rong Sun,Chingping Wong
In order to develop a low cost, sustainable, and eco-friendly energy storage device, we demonstrated an all solid state symmetric flexible supercapacitor based on the office waste paper fibers-reduced graphene oxide-manganese dioxide (PF-RGO-MnO 2 ) which acts as both the positive and negative electrodes. With the assistance of facile solution phase assembly and vacuum filtration method, the flexible PF-RGO-MnO 2 electrodes with high physical flexibility and excellent mechanical strength were fabricated directly without any binder agents. Furthermore, owing to the advantages of the lager surface area and microfibers of the each single paper fiber, the PF-based hybrid flexible electrodes show high specific capacitance of 410 F g − 1 at 0.8 A g − 1 and retain 93% capacitance over 5000 cycles, indicating outstanding electrochemical performance. In addition, the assembled solid-state symmetric supercapacitors exhibit high energy density (19.6 Wh kg − 1 at 400 W kg − 1 ) and excellent cycling stability of 85.3% retention even after 2000 folding and bending cycles. These results propose a renewable way to turn “waste” into wealth, and provide a new method to fabricate the sustainable and freestanding paper-based supercapacitor for application in the flexible energy storage devices.
研究领域:
材料科学
·
能源存储
·
环境科学
✓ 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）