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Lv F, He L, Bai X, Wang D, Zhao Y. Enhancing photocatalytic CO 2 reduction activity through Cobalt-Bismuth bimetallic Nanoparticle-Modified Nitrogen-Doped graphite carbon. J Colloid Interface Sci 2024; 675:1069-1079. [PMID: 39018634 DOI: 10.1016/j.jcis.2024.07.092] [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: 02/26/2024] [Revised: 07/06/2024] [Accepted: 07/11/2024] [Indexed: 07/19/2024]
Abstract
Efficient charge transfer and effective separation of photo-generated charge carriers are crucial factors in photocatalysis. In this study, we present the design of a composite photocatalyst consisting of cobalt and bismuth (CoBi) bimetallic nanoparticles incorporated into a honeycomb nitrogen-doped graphitic carbon (N-GC) matrix. The ultra-thin porous N-GC matrix exhibits excellent electrical conductivity, a high number of active sites, and enables efficient absorption and multiple reflection of incident light. The CoBi bimetal-N-GC interface establishes a self-driven charge transport channel that effectively suppresses the backflow of photogenerated electrons, leading to prolonged separation of photo-generated carriers and a significant improvement in photocatalytic activity. The CoBi@N-GC catalyst showcases outstanding performance, producing CH4 and CO at rates of 36.07 μmol·g-1·h-1 and 44.09 μmol·g-1·h-1 respectively, confirming its superior photocatalytic capabilities.
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Affiliation(s)
- Fei Lv
- The Institute of Technological Sciences, Wuhan University, Wuhan, 430072, PR China
| | - Lang He
- Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, PR China.
| | - Xue Bai
- The Institute of Technological Sciences, Wuhan University, Wuhan, 430072, PR China
| | - Du Wang
- The Institute of Technological Sciences, Wuhan University, Wuhan, 430072, PR China.
| | - Yan Zhao
- The Institute of Technological Sciences, Wuhan University, Wuhan, 430072, PR China; College of Materials Science and Engineering, Sichuan University, Chengdu 610065, PR China.
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2
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Wang Y, Jiao T, Zhang P, Hou W, Li Z, Dong C, Zhang W, Zhang L. Efficient degradation of tetracycline via peroxymonosulfate activation by phosphorus-doped biochar loaded with cobalt nanoparticles. Dalton Trans 2024; 53:10189-10200. [PMID: 38819397 DOI: 10.1039/d4dt00758a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2024]
Abstract
The accumulation of tetracycline hydrochloride (TCH) threatens human health because of its potential biological toxicity. Carbon -based materials with easy isolation and excellent performance that can activate peroxymonosulfate (PMS) to generate reactive oxygen species for TCH degradation are essential, but the development of such materials remains a significant challenge. In this study, based on the idea of treating waste, tricobalt tetraoxide loaded P-doped biochar (Co NP-PBC) was synthesised to activate PMS for the degradation of TCH. Possible degradation pathways and intermediate products of TCH were identified using High performance liquid chromatography tandem mass spectrometry (HPLC-MS) detection and density functional theory analysis. Toxicity analysis software was used to predict the toxicity of the intermediate products. Compared to catalysts loaded with Fe and Mn and other Co-based catalysts, Co NP-PBC exhibited an optimal performance (with a kinetic constant of 0.157 min-1 for TCH degradation), and over 99.0% of TCH can be degraded within 20 min. This mechanism demonstrates that the non-free radical oxidation of 1O2 plays a major role in the degradation of TCH. This study provides insights into the purification of wastewater using BC-based catalysts.
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Affiliation(s)
- Yunpeng Wang
- Institute of Environmental Science, School of Environmental and Resources Sciences, Shanxi University, 030006, China.
| | - Ting Jiao
- Institute of Environmental Science, School of Environmental and Resources Sciences, Shanxi University, 030006, China.
| | - Peng Zhang
- Institute of Environmental Science, School of Environmental and Resources Sciences, Shanxi University, 030006, China.
| | - Wanyi Hou
- Institute of Environmental Science, School of Environmental and Resources Sciences, Shanxi University, 030006, China.
| | - Zhongping Li
- Institute of Environmental Science, School of Environmental and Resources Sciences, Shanxi University, 030006, China.
- Shanxi Laboratory for Yellow River, Taiyuan 030006, China
| | - Chuan Dong
- Institute of Environmental Science, School of Environmental and Resources Sciences, Shanxi University, 030006, China.
- Shanxi Laboratory for Yellow River, Taiyuan 030006, China
| | - Wanying Zhang
- School of chemistry and materials science, Shanxi Normal University, Taiyuan 030031, China
| | - Lei Zhang
- Department of Biology, Xinzhou Normal University, Xinzhou 034000, China
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Liu Q, Li X. Molten salt synthesis of porous graphene-like carbons as peroxydisulfate catalyst for the efficient removal of rhodamine B dye. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:43249-43261. [PMID: 38898350 DOI: 10.1007/s11356-024-33951-1] [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: 04/02/2024] [Accepted: 06/05/2024] [Indexed: 06/21/2024]
Abstract
Carbon materials have been receiving considerable attention as effective green catalysts for peroxydisulfate (PDS) activation to degrade organic pollutants. Herein, the porous graphene-like carbons (PGCs) were synthesized by pyrolyzing a nitrogen-rich biomass (peanut shell, PS) in the eutectic mixture of FeCl3 and ZnCl2. The results suggested that involvement of molten salts attributed the biochar the amazing properties such as high specific surface area (SBET = 2529.4 m2 g-1), abundant structural defects, high nitrogen content (6.5%), and oxygen-containing functional groups on its surface. Especially when pyrolyzed at activation temperature of 800 °C, mass ratio of 1:3:15 (PS:ZnCl2:FeCl3), and activation time of 2 h, the optimized PGCs-op exhibited outstanding performance in the catalytic degradation of rhodamine B (RhB). Almost all of RhB (99.02%) was removed in 40 min and basically not influenced by initial pH in the range of 3.00 to 9.98. Although the RhB degradation was influenced by anions (Cl-, HCO3-, HPO42-), the inhibition would be significantly alleviated within 120 min unless these substances were high in concentration. Furthermore, the quenching tests revealed that the reactive species were involved in RhB degradation in the sequence of 1O2 > O2∙- > SO4∙- > ∙OH, among which singlet oxygen played a crucial role. Combined with characterization analysis, a possible mechanism of RhB degradation in PGCs-op/PDS system was proposed. Overall, this study provided a promising metal-free catalyst for the removal of organic pollutants while achieving reutilization of the waste biomass.
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Affiliation(s)
- Qiong Liu
- School of Environmental Engineering and Chemistry, Luoyang Institute of Science and Technology, No. 90 of Wangcheng Road, Luoyang, 471000, China.
| | - Xinghang Li
- School of Environmental Engineering and Chemistry, Luoyang Institute of Science and Technology, No. 90 of Wangcheng Road, Luoyang, 471000, China
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Li C, Yin S, Yan Y, Liang C, Ma Q, Guo R, Zhang Y, Deng J, Sun Z. Efficient benzo(a)pyrene degradation by coal gangue-based catalytic material for peroxymonosulfate activation. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 351:119645. [PMID: 38048711 DOI: 10.1016/j.jenvman.2023.119645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Revised: 11/05/2023] [Accepted: 11/15/2023] [Indexed: 12/06/2023]
Abstract
A low cost and green peroxymonosulfate (PMS) activation catalyst (CG-Ca-N) was successfully prepared with coal gangue (CG), calcium chloride, and melamine as activator. Under the optimal conditions, the CG-Ca-N can remove 100 % for benzo(a)pyrene (Bap) in an aqueous solution after 20 min and 72.06 % in soil slurry medium within 60 min, which also display excellent reuse ability toward Bap after three times. The removal of Bap is significantly decreased when the initial pH value was greater than 9 and obviously inhibited in the presence of HCO3- or SO42-. The characterization results indicated that the addition of calcium chloride could stabilize and increase the content of pyridinic N during thermal annealing, resulting in the production of •OH, SO4•- and 1O2. Based on electron paramagnetic resonance (EPR) and active radical scavenging experiments, 1O2 could be identified to be the dominant role in Bap degradation. Overall, this work opened a new perspective for the low cost and green PMS catalysts and offered great promise in the practical remediation of organic pollution of groundwater and soil.
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Affiliation(s)
- Chunquan Li
- School of Chemical and Environmental Engineering, China University of Mining and Technology (Beijing), Beijing, 100083, PR China
| | - Shuaijun Yin
- School of Chemical and Environmental Engineering, China University of Mining and Technology (Beijing), Beijing, 100083, PR China
| | - Yutong Yan
- School of Chemical and Environmental Engineering, China University of Mining and Technology (Beijing), Beijing, 100083, PR China
| | - Chao Liang
- School of Chemical and Environmental Engineering, China University of Mining and Technology (Beijing), Beijing, 100083, PR China
| | - Qingshui Ma
- Inner Mongolia Mengtai Buliangou Coal Industry Co., Ltd, Ordos, 010399, PR China
| | - Rui Guo
- Inner Mongolia Mengtai Buliangou Coal Industry Co., Ltd, Ordos, 010399, PR China
| | - Yubo Zhang
- Huadian Coal Industry Group Digital Intelligence Technology Co., Ltd, Beijing, 102400, PR China
| | - Jiushuai Deng
- School of Chemical and Environmental Engineering, China University of Mining and Technology (Beijing), Beijing, 100083, PR China
| | - Zhiming Sun
- School of Chemical and Environmental Engineering, China University of Mining and Technology (Beijing), Beijing, 100083, PR China.
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Peng Z, Li S, He H, Wen Y, Huang H, Su L, Yi Z, Peng X, Zhou N. FeS and Fe 3O 4 Co-modified biochar to build a highly resistant advanced oxidation process system for quinclorac degradation in irrigation water. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 348:119492. [PMID: 37922748 DOI: 10.1016/j.jenvman.2023.119492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 10/16/2023] [Accepted: 10/28/2023] [Indexed: 11/07/2023]
Abstract
Advanced oxidation processes (AOPs), based on sulfate radical (SO4·-) produced by peroxymonosulfate (PMS), can effectively mineralize refractory organic pollutants. However, the coexistence of anions and natural organic matters in actual wastewater prevents the application of AOPs. A simple one-step method was used to prepare FeS/Fe3O4 co-modified biochar materials (FFB) that could activate PMS to degrade quinclorac (QNC) with a removal rate of 100%, even exhibiting optimum degradation of QNC reached 99.31% in irrigation water, demonstrating excellent anti-interference performance for co-existing anions and natural organic matter. Meanwhile, ecotoxicity analysis showed that the toxicity of degradation intermediates was lower than that of QNC. Characterization results demonstrated the even distribution of FeS and Fe3O4 onto biochar, supplying abundant Fe2+ to activate PMS producing reactive oxygen species (ROS), while the generated Fe3+ after reactive continue to be reduced with sulfur species to promote the cycle of Fe2+/Fe3+. The coexistence of ·OH, SO4·-, 1O2, and O2·- in the FFB/PMS-QNC system suggest the possession of two pathway with free radical and non-free radical pathways to degrade QNC. The density functional theory (DFT) was used to analyze the adsorption sites and adsorption energy of PMS, as well as the differential charge density, which further proved the generation of SO4·-, O2·- and 1O2. In addition, the electrochemical test results showed that electron transfer also played an important role in the degradation of QNC. This study provides a feasible approach for the removal of organic pollutants in actual water.
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Affiliation(s)
- Zhengjie Peng
- Hunan Engineering Research Center for Biochar, Hunan Agricultural University, Changsha, 410128, China; School of Chemistry and Materials Science, College of Mechanical and Electrical Engineering, Hunan Agricultural University, Changsha, 410128, China
| | - Shikai Li
- Hunan Engineering Research Center for Biochar, Hunan Agricultural University, Changsha, 410128, China; School of Chemistry and Materials Science, College of Mechanical and Electrical Engineering, Hunan Agricultural University, Changsha, 410128, China
| | - Hao He
- Hunan Engineering Research Center for Biochar, Hunan Agricultural University, Changsha, 410128, China; School of Chemistry and Materials Science, College of Mechanical and Electrical Engineering, Hunan Agricultural University, Changsha, 410128, China
| | - Yujiao Wen
- Hunan Engineering Research Center for Biochar, Hunan Agricultural University, Changsha, 410128, China; School of Chemistry and Materials Science, College of Mechanical and Electrical Engineering, Hunan Agricultural University, Changsha, 410128, China
| | - Haolong Huang
- Hunan Engineering Research Center for Biochar, Hunan Agricultural University, Changsha, 410128, China; School of Chemistry and Materials Science, College of Mechanical and Electrical Engineering, Hunan Agricultural University, Changsha, 410128, China
| | - Lezhu Su
- Hunan Engineering Research Center for Biochar, Hunan Agricultural University, Changsha, 410128, China; School of Chemistry and Materials Science, College of Mechanical and Electrical Engineering, Hunan Agricultural University, Changsha, 410128, China
| | - Zhigang Yi
- Hunan Renhe Environment Co., LTD, Changsha, 410022, China
| | - Xing Peng
- Hunan Renhe Environment Co., LTD, Changsha, 410022, China.
| | - Nan Zhou
- Hunan Engineering Research Center for Biochar, Hunan Agricultural University, Changsha, 410128, China; School of Chemistry and Materials Science, College of Mechanical and Electrical Engineering, Hunan Agricultural University, Changsha, 410128, China.
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6
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Su C, Zhang N, Zhu X, Sun Z, Hu X. pH adjustable MgAl@LDH-coated MOFs-derived Co 2.25Mn 0.75O 4 for SMX degradation in PMS activated system. CHEMOSPHERE 2023; 339:139672. [PMID: 37517665 DOI: 10.1016/j.chemosphere.2023.139672] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2023] [Revised: 07/11/2023] [Accepted: 07/27/2023] [Indexed: 08/01/2023]
Abstract
Sulfate radical-based advanced oxidation processes (SR-AOPs) is considered as one of the most promising technologies for antibiotic pollution. In this study, a core-shell catalyst of cobalt-manganese oxide derived from CoMn-MOFs coating by MgAl-LDH (Co/Mn@LDH) was synthesized for peroxymonosulfate (PMS) activation to degrade sulfamethoxazole (SMX). Degradation efficiency of nearly 100% and a mineralization efficiency of 68.3% for SMX were achieved in Co/Mn@LDH/PMS system. Mn species and out shell MgAl-LDH greatly suppressed the cobalt ions leaching, which only 23 μg/L Co ions were detected by ICP after the reaction. SO4·- was identified as dominant reactive species in the system. Furthermore, the possible reactive sites of SMX were predicted by the density functional theory (DFT) calculations. And the intermediates of SMX were detected by LC-MS and the degradation pathway was proposed based on the results above. The ECOSAR results suggested the intermediates of SMX showed a relatively low toxicity compared to SMX, indicating huge potential of utilization of Co/Mn@LDH in SR-AOPs system.
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Affiliation(s)
- Chenxin Su
- Research Group of Water Pollution Control and Water Reclamation, College of Chemical Engineering, Beijing University of Chemical Technology, Beijing, 100029, PR China
| | - Nizi Zhang
- Research Group of Water Pollution Control and Water Reclamation, College of Chemical Engineering, Beijing University of Chemical Technology, Beijing, 100029, PR China
| | - Xiaobiao Zhu
- Research Group of Water Pollution Control and Water Reclamation, College of Chemical Engineering, Beijing University of Chemical Technology, Beijing, 100029, PR China.
| | - Zhirong Sun
- Faculty of Environment and Life, Beijing University of Technology, Beijing, 100124, PR China
| | - Xiang Hu
- Research Group of Water Pollution Control and Water Reclamation, College of Chemical Engineering, Beijing University of Chemical Technology, Beijing, 100029, PR China.
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7
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Pan Z, Xin H, Xu R, Wang P, Fan X, Song Y, Song C, Wang T. Carbon electrochemical membrane functionalized with flower cluster-like FeOOH catalyst for organic pollutants decontamination. J Colloid Interface Sci 2023; 640:588-599. [PMID: 36878076 DOI: 10.1016/j.jcis.2023.02.135] [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: 01/11/2023] [Revised: 02/22/2023] [Accepted: 02/25/2023] [Indexed: 03/06/2023]
Abstract
Decorating active catalysts on the reactive electrochemical membrane (REM) is an effective way to further improve its decontamination performance. In this work, a novel carbon electrochemical membrane (FCM-30) was prepared through coating FeOOH nano catalyst on a low-cost coal-based carbon membrane (CM) through facile and green electrochemical deposition. Structural characterizations demonstrated that the FeOOH catalyst was successfully coated on CM, and it grew into a flower cluster-like morphology with abundant active sites when the deposition time was 30 min. The nano FeOOH flower clusters can obviously boost the hydrophilicity and electrochemical performance of FCM-30, which enhance its permeability and bisphenol A (BPA) removal efficiency during the electrochemical treatment. Effects of applied voltages, flow rates, electrolyte concentrations and water matrixes on BPA removal efficiency were investigated systematically. Under the operation condition of 2.0 V applied voltage and 2.0 mL·min-1 flow rate, FCM-30 can achieve the high removal efficiency of 93.24% and 82.71% for BPA and chemical oxygen demand (COD) (71.01% and 54.89% for CM), respectively, with only a low energy consumption (EC) of 0.41 kWh·kgCOD-1, which can be ascribed to the enhancement on OH yield and direct oxidation ability by the FeOOH catalyst. Moreover, this treatment system also exhibits good reusability and can be adopted on different water background as well as different pollutants.
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Affiliation(s)
- Zonglin Pan
- College of Environmental Science and Engineering, Dalian Maritime University, 1, Linghai Road, Dalian 116026, China
| | - Hong Xin
- College of Environmental Science and Engineering, Dalian Maritime University, 1, Linghai Road, Dalian 116026, China
| | - Ruisong Xu
- School of Chemical Engineering, Dalian University of Technology, 2, Linggong Road, Dalian 116024, China.
| | - Pengcheng Wang
- Department of Mechanical Engineering, University of Houston, Houston, TX 77204, USA
| | - Xinfei Fan
- College of Environmental Science and Engineering, Dalian Maritime University, 1, Linghai Road, Dalian 116026, China
| | - Yongxin Song
- Department of Marine Engineering, Dalian Maritime University, 1, Linghai Road, Dalian 116026, China
| | - Chengwen Song
- College of Environmental Science and Engineering, Dalian Maritime University, 1, Linghai Road, Dalian 116026, China.
| | - Tonghua Wang
- College of Environmental Science and Engineering, Dalian Maritime University, 1, Linghai Road, Dalian 116026, China; School of Chemical Engineering, Dalian University of Technology, 2, Linggong Road, Dalian 116024, China.
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Li X, Liu X, Zhang K, Luo H, Pu A, Zhuang D, Jiang B, Li M, Chen W, Fan L, Qing J, Zhang X, Chen F, Zhang X. Controlling methane emissions from Integrated Vertical-Flow Constructed Wetlands by using potassium peroxymonosulfate as oxidant. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 325:116444. [PMID: 36283168 DOI: 10.1016/j.jenvman.2022.116444] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 09/29/2022] [Accepted: 10/02/2022] [Indexed: 06/16/2023]
Abstract
It is very important to control methane emissions to reduce global warming. In this study, a new attempt of one oxidant (potassium peroxymonosulfate (PMS)) was made to adjust the oxidation-reduction potential (Eh) by adding different mass of (0 g, 31.25 g, 62.5 g, 125 g, 250 g and 500 g) for the reduction of methane emissions from integrated vertical-flow constructed wetland (IVCW), where the IVCW system has been divided into the root-water system and the stem-leaf system of methane emissions. Results show that the reduced CH4 emission from IVCW was the highest with decreased by 43.5% compared to blank group (PMS = 0), when adding 125 g PMS. Importantly, the reduced CH4 from the root-water system of IVCW was higher than that of the stem-leaf system of IVCW, when adding PMS. It's found that Eh not only has a significant correlation with CH4 flux, but also has a significant relationship between PMS quality, DO, water temperature and sampling time (yEh = -0.44XPMS + 6.82XDO + 0.38t - 264.1, R2 = 0.99). It concludes that PMS, as an oxidant, is a very feasible method for controlling methane emissions from IVCW. It's concluded from this study that it is a feasible engineering method by using PMS as an oxidant for reducing methane emissions from IVCWs when treating artificial domestic sewage. Further research may combine other methods together such as microbiology, physical control and hydrology control for mitigating the CH4 emissions from constructed wetlands for more types of wastewater.
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Affiliation(s)
- Xinping Li
- Department of Ecology Engineering and Torism, Henan Forestry Vocational College, Luoyang, 471002, China
| | - Xiaoling Liu
- Department of Information Engineering, Sichuan Water Conservancy Vocational College, Chengdu, 611231, China
| | - Ke Zhang
- College of Civil Engineering, Sichuan Agricultural University, Chengdu, 611830, China
| | - Hongbing Luo
- College of Civil Engineering, Sichuan Agricultural University, Chengdu, 611830, China.
| | - Aiping Pu
- Southwest Investment &Development Company Co., Ltd., 7th Division of CSCEC, Chengdu, 610095, China
| | - Daiwei Zhuang
- College of Civil Engineering, Sichuan Agricultural University, Chengdu, 611830, China
| | - Bing Jiang
- Business and Tourism School, Sichuan Agricultural University, Chengdu, 611830, China
| | - Mei Li
- School of Urban and Rural Construction, Chengdu University, Chengdu, 610106, China
| | - Wei Chen
- College of Civil Engineering, Sichuan Agricultural University, Chengdu, 611830, China
| | - Liangqian Fan
- College of Civil Engineering, Sichuan Agricultural University, Chengdu, 611830, China
| | - Jing Qing
- College of Civil Engineering, Sichuan Agricultural University, Chengdu, 611830, China
| | - Xiaoxiao Zhang
- College of Civil Engineering, Sichuan Agricultural University, Chengdu, 611830, China
| | - Fenghui Chen
- College of Civil Engineering, Sichuan Agricultural University, Chengdu, 611830, China
| | - Xiaohong Zhang
- College of Environmental Sciences, Sichuan Agricultural University, Chengdu, 611130, China
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