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Huang L, Wang H, Wang G, Mu D, Hou Y, Di X, Zhou S, Wang D, Wang D. Efficient degradation of cellulosic ethanol wastewater by perovskite activation of Sr element A-site doped lanthanide copper chalcogenide materials. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:6511-6526. [PMID: 38148458 DOI: 10.1007/s11356-023-31573-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Accepted: 12/11/2023] [Indexed: 12/28/2023]
Abstract
The degradation of cellulosic ethanol wastewater by peroxymonosulfate (PMS) is one of the important methods to solve the environmental problems caused by it. In order to improve the degradation efficiency of cellulosic ethanol wastewater, the design of more catalytically active and stable chalcogenide catalysts has become a problem that needs to be solved nowadays. The application of foreign cations to replace the A- or B-site to increase the oxygen vacancy of the chalcocite catalyst to improve the efficiency of chalcocite catalytic degradation of wastewater has received much attention. In this work, the perovskite material LaCuO3 was synthesized using a citric acid-sol-gel method, and the novel material La1-xSrxCuO3 was prepared by doping of Sr element at the A position. In order to prepare catalytic materials with better performance, this study carried out performance-optimized degradation experiments on the prepared materials and determined that the catalytic efficiency of La0.5Sr0.5CuO3 prepared under the conditions of the complexing agent dosage of 1:2, the gel temperature of 80 °C, and the calcination temperature of 700 °C was better than that of the catalytic materials prepared under other conditions. The prepared material has good recycling function; after four times recycling, the removal rate of pollutant COD is still more than 85%. This work provides a new synthesis method of perovskite material with good recycling function and high catalytic efficiency for the degradation technology of cellulosic ethanol wastewater.
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Affiliation(s)
- Likun Huang
- School of Food Engineering, Harbin University of Commerce, Harbin, 150028, China
| | - Huixian Wang
- School of Food Engineering, Harbin University of Commerce, Harbin, 150028, China
| | - Guangzhi Wang
- School of Environment, Harbin Institute of Technology, Harbin, 150090, China.
| | - Deying Mu
- School of Food Engineering, Harbin University of Commerce, Harbin, 150028, China
| | - Yue Hou
- School of Food Engineering, Harbin University of Commerce, Harbin, 150028, China
| | - Xinyi Di
- School of Food Engineering, Harbin University of Commerce, Harbin, 150028, China
| | - Simin Zhou
- School of Environment, Harbin Institute of Technology, Harbin, 150090, China
| | - Dongdong Wang
- School of Environment, Harbin Institute of Technology, Harbin, 150090, China
| | - Dandan Wang
- School of Food Engineering, Harbin University of Commerce, Harbin, 150028, China
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Um H, Kang RH, Kim D. Iron-silicate-coated porous silicon nanoparticles for in situ ROS self-generation. Colloids Surf B Biointerfaces 2023; 225:113273. [PMID: 36965332 DOI: 10.1016/j.colsurfb.2023.113273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 03/09/2023] [Accepted: 03/17/2023] [Indexed: 03/27/2023]
Abstract
Porous silicon nanoparticles (pSiNPs) have gained attention from drug delivery systems (DDS) due to their biocompatibility, high drug-loading efficiency, and facile surface modification. To date, many surface chemistries of pSiNPs have been developed to maximize the merits and overcome the drawbacks of pSiNPs. In this work, we newly disclosed a formulation, iron-silicate-coated pSiNPs (Fe-pSiNPs-NCS), using the surface modification method with iron-silicate and 3-isothiocyanatopropyltriethoxysilane (TEPITC). Fe-pSiNPs-NCS demonstrated effective reactive-oxygen species (ROS) self-generation ability via a Fenton-like reaction of iron-silicate and in situ hydrogen peroxide (H2O2) generation of TEPITC on the surface of pSiNPs, resulting in excellent anticancer effect in U87MG cancer cells. Moreover, we confirmed that Fe-pSiNPs-NCS could be used as a drug delivery carrier as it was proven that anticancer drugs (doxorubicin, SN-38) were loaded into Fe-pSiNPs-NCS with high-loading efficiency. These findings could offer efficient strategies for developing nanotherapeutics in biomedical fields.
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Affiliation(s)
- Hyeji Um
- Department of Biomedical Science, Graduate School, Kyung Hee University, Seoul 02447, the Republic of Korea
| | - Rae Hyung Kang
- Pharmaceutical Sciences Division, School of Pharmacy, University of Wisconsin-Madison, 777 Highland Avenue, Madison, WI 53705, USA
| | - Dokyoung Kim
- Department of Biomedical Science, Graduate School, Kyung Hee University, Seoul 02447, the Republic of Korea; Medical Research Center for Bioreaction to Reactive Oxygen Species and Biomedical Science Institute, Kyung Hee University, Seoul 02447, the Republic of Korea; Department of Anatomy and Neurobiology, College of Medicine, Kyung Hee University, Seoul 02447, the Republic of Korea; Center for Converging Humanities, Kyung Hee University, Seoul 02447, the Republic of Korea; KHU-KIST Department of Converging Science and Technology, Kyung Hee University, Seoul 02447, the Republic of Korea; UC San Diego Materials Research Science and Engineering Center, 9500 Gilman Drive, La Jolla, CA 92093, USA.
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Wang H, Zou Y, Luo T, Benouahmane M, Zhou D, Wu F. Mechanism of thermal activation of sulfite and its application in the heat–electro-S(IV) system for As(III) oxidation in water. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121607] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Rao D, Dong H, Niu M, Wang X, Qiao J, Sun Y, Guan X. Mechanistic Insights into the Markedly Decreased Oxidation Capacity of the Fe(II)/S 2O 82- Process with Increasing pH. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2022; 56:13131-13141. [PMID: 36067445 DOI: 10.1021/acs.est.2c04109] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The poor oxidation capacity of the Fe(II)/S2O82- [Fe(II)/PDS] system at pH > 3.0 has limited its wide application in water treatment. To unravel the underlying mechanism, this study systematically evaluated the possible influencing factors over the pH range of 1.0-8.0 and developed a mathematical model to quantify these effects. Results showed that ∼82% of the generated Fe(IV) could be used for pollutant degradation at pH 1.0, whereas negligible Fe(IV) contribution was observed at pH 7.5. This dramatic decline of Fe(IV) contribution with increasing pH dominantly accounted for the pH-dependent performance of the Fe(II)/PDS process. Unexpectedly, Fe(II) could consume ∼80% of the generated SO4•- non-productively under both acidic and near-neutral conditions, while the larger formation of Fe(III) precipitates at high pH inhibited the SO4•- contribution mildly. Moreover, the strong Fe(II) scavenging effect was difficult to be compensated for by slowing down the Fe(II) dosing rate. The competition of dissolved oxygen with PDS for Fe(II) was insignificant at pH ≤ 7.5, where the second-order rate constants for reactions of Fe(II) with oxygen were much lower than or comparable to that between Fe(II) and PDS. These findings could advance our understanding of the chemistry and application of the Fe(II)/PDS process.
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Affiliation(s)
- Dandan Rao
- State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, P. R. China
- Department of Chemical and Environmental Engineering, University of California, Riverside, A235 Bourns Hall, 3401 Watkins Drive, Riverside, California 92521, United States
| | - Hongyu Dong
- Shanghai Engineering Research Center of Biotransformation of Organic Solid Waste, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China
| | - Mengfan Niu
- Shanghai Engineering Research Center of Biotransformation of Organic Solid Waste, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China
| | - Xiaohan Wang
- Shanghai Engineering Research Center of Biotransformation of Organic Solid Waste, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China
| | - Junlian Qiao
- State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, P. R. China
| | - Yuankui Sun
- Shanghai Engineering Research Center of Biotransformation of Organic Solid Waste, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China
| | - Xiaohong Guan
- State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, P. R. China
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Yan S, Jiang Y, Chen X, Zhou T. Improved Advanced Oxidation Process for In Situ Recycling of Al Foils and Cathode Materials from Spent Lithium-Ion Batteries. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c01286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Shuxuan Yan
- Hunan Provincial Key Laboratory of Chemical Power Sources, College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P.R. China
| | - Youzhou Jiang
- Hunan Provincial Key Laboratory of Chemical Power Sources, College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P.R. China
| | - Xiangping Chen
- School of Environmental Science and Engineering, Shaanxi University of Science & Technology, Xi’an 710021, P.R. China
| | - Tao Zhou
- Hunan Provincial Key Laboratory of Chemical Power Sources, College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P.R. China
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