Article
Environmental Sciences
Haibo Wang, Qi Zhang, Mario Alberto Gomez, Yongfeng Jia, Shuhua Yao, Shifeng Li
Summary: In this study, the impact of grain size, pH, organic acids, inorganic anions, and cations on the chemical fractions of Cd in sediments was investigated using the BCR sequential extraction procedure and ICP-OES technology. The results showed that fine-grained sediments had a good ability to combine Cd, while coarse-grained sediments exhibited a higher exchangeable/acid-soluble fraction. pH had a significant effect on the release of Cd, and organic acids also influenced the mobility of Cd in sediments.
ENVIRONMENTAL EARTH SCIENCES
(2022)
Article
Mining & Mineral Processing
M. Onifade, A. Lawal, J. Abdulsalam, B. Genc, S. Bada, K. O. Said, A. R. Gbadamosi
Summary: The study comprehensively investigated the distribution and influences of various organic and inorganic constituents on coal combustion. Multiple soft computing models were utilized to predict the amount of macerals and total mineral matter in Witbank Coalfields samples, with MISOWB-ANN providing the most reliable predictive model among the four models.
INTERNATIONAL JOURNAL OF MINING SCIENCE AND TECHNOLOGY
(2021)
Article
Chemistry, Physical
Xianghong Xie, Rong Wang, Xixi Zhang, Yarong Ren, Ting Du, Yongsheng Ni, Huiling Yan, Liang Zhang, Jing Sun, Wentao Zhang, Jianlong Wang
Summary: The synergistic antibacterial strategy presented in this study utilizes copper peroxide and tungsten disulfide nanoflowers to activate the Fenton reaction under acidic conditions and eliminate bacteria by transforming light into localized heat under near-infrared laser irradiation. This system has shown significant antibacterial effects on Escherichia coli and Staphylococcus aureus both in vitro and in vivo, suggesting its potential for rational design of synergistic antibacterial systems.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Engineering, Environmental
Jiajia Li, Yi Li, Mengzhen Zhu, Qiong Mei, Xi Tang, Yao Wu, Shijun Yue, Yuping Tang, Qizhao Wang
Summary: This work aims to improve the carrier separation rate and promote the iron cycle transformation in photocatalysis-Fenton degradation of antibiotic pollutants by introducing aloe-emodin into FeOOH through organic-inorganic heterojunction. The prepared aloe-emodin/FeOOH sample showed significantly higher tetracycline removal efficiency compared to aloe-emodin and FeOOH alone, attributed to the synergistic effect of aloe-emodin and FeOOH in the presence of H2O2. The effects of aloe-emodin/FeOOH interface structural characteristics on carrier transmission modes and surface catalytic kinetics were also investigated.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Chemistry, Physical
Jianbo Zhang, Kun Lei, Ji Cheng, Lingqing Luo, Xiaojun Liu, Jinghua Li
Summary: This study prepared sea urchin palladium-copper nanospines (PdCuAu NAs) using a one-step reduction method. PdCuAu NAs, a highly branched nanomaterial composed of nanospines, showed excellent Fenton catalytic activity and photothermal properties due to its unique structure and trimetallic composition. PdCuAu NAs were characterized using SEM, XPS, and UV-Vis techniques. Under near-infrared light, PdCuAu NAs exhibited rapid heating and displayed better Fenton catalytic activity in the degradation of organic dyes compared to traditional photocatalysts. It also demonstrated good photothermal stability and reusability, making it effective for treating organic wastewater.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Jinghua Li, Jianbo Zhang, Xibin Jiao, Jiahua Shi, Jiangxue Ye, Kena Song, Jianfeng Bao, Guangda Li, Kun Lei
Summary: The near-infrared light driven concave octopod PtCu alloy nanocages show excellent performance in degrading pollutant dyes through photothermal effect, making them potentially valuable for wastewater treatment applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Multidisciplinary
Fanwen Sun, Yayun Peng, Yanping Li, Menghan Xu, Ting Cai
Summary: A Fe-based metal-organic framework (MOF) was developed to deliver and transform acetaminophen into a toxic chemo drug for enhanced cancer therapy. In the acidic tumor microenvironment, the MOF collapses and releases Fe ions to generate hydroxyl radicals, catalyzing the conversion of nontoxic acetaminophen into toxic NAPQI. Additionally, NAPQI depletes intracellular GSH, reducing the antioxidant ability of cancer cells and amplifying Fenton activity. This study demonstrates the synergistic antitumor effect of intracellular oxidative stress and the toxic metabolite of acetaminophen.
CHINESE CHEMICAL LETTERS
(2023)
Article
Meteorology & Atmospheric Sciences
Subash Adhikari, Fan Zhang, Namita Paudel Adhikari, Chen Zeng, Ramesh Raj Pant, Kirpa Ram, Yongqin Liu, Nasir Ahmed, Jie Xu, Lekhendra Tripathee, Qianggong Zhang, Md Abdul Quaiyum Bhuiyan, Md Ariful Ahsan
Summary: The study investigates the quantitative and qualitative characteristics of ions and inorganic nitrogen in precipitation samples collected from Bangladesh. It reveals distinct seasonality and sources impacting the precipitation chemistry, with calcium being the dominant neutralizing factor. The presence of diverse air masses and deposition of inorganic nitrogen beyond the threshold line are significant findings of this comprehensive study on atmospheric environment in lowland region.
ATMOSPHERIC RESEARCH
(2021)
Article
Chemistry, Physical
Aitao Chen, Chao Li, Conghua Liu, Wuzhu Sun
Summary: Copper oxides supported on porous P-doped g-C3N4 (Cu/p-PCN) were obtained using a stepwise calcination process. The addition of P atoms into the g-C3N4 network provided additional electrons for the conjugated system. The Cu/p-PCN catalyst exhibited enhanced performance and H2O2 utilization due to the Cu-pi interactions and electron injection from P atoms.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Yasaman Ghaffari, Md Saifuddin, Suho Kim, Soyoung Beak, Jiyeol Bae, Kwang Soo Kim
Summary: A series of novel MnxFey@SiO2 (x,y = 1-20%) nanocomposites were synthesized for the first time, and their physicochemical properties were observed by various characterization methods. The results showed that increasing Fe and Mn content improved the morphology of the nanocomposites. Interestingly, the BET results demonstrated different behavior, indicating that one metal could be more critical in controlling the properties than the other. Moreover, the precursor ratio had a more tangible effect on the surface area than the precursor content. Among all synthesized nanocomposites, Mn1Fe5@SiO2 exhibited the highest surface area and achieved complete removal of the target pollutant at neutral pH.
Article
Engineering, Environmental
Lucie Pidoux, Holly Shorney-Darby, Elisabeth Vaudevire, Bram Martijn, Peter Jarvis, Irene Carra
Summary: Reducing regeneration frequency allows for the reuse of ion exchange resin and reduces the generation of brine and waste. The study suggests that both electrostatic interactions and admicelle formation are separation mechanisms. However, repeated use of the resin leads to changes in resin loading and increased risk of corrosion. Reusing the bicarbonate-form resin every 5 cycles achieves the most sustainable option.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Environmental Sciences
Shivangi, Siddhant Bhardwaj, Tapan Sarkar
Summary: Ni/NiO/SnO2 hybrids were successfully synthesized, showing high metal ion adsorption capacity and organic dye photodegradation capability, with a good removal effect on pollutants in water.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Chemistry, Multidisciplinary
Huiyi Huang, Honghong Rao, Xinyuan Zhang, Rongji Wang, Mingming Wei, Xin Xue, Mingyue Luo, Zhonghua Xue, Xiaoquan Lu
Summary: The study integrated inorganic and organic photothermal probes to develop a new signal-amplified Ag+ photothermometric sensor, relying on the successful exploitation of a dual-signal transduction channel from the photothermal property and peroxidase-like activity of Prussian blue nanocubes.
CHEMICAL COMMUNICATIONS
(2021)
Article
Chemistry, Physical
Tianyu Gao, Haojie Sui, Jingwei Zhu, Haiyan Chen, Qunwei Tang, Benlin He
Summary: Nd-doped TiO2 is used as an electron-transport layer (ETL) in perovskite solar cells (PSCs) to enhance the power conversion efficiency (PCE). The doping effect of Nd reduces trap states and improves electron mobility and conductivity of TiO2, leading to a well-matched energy level with the perovskite layer. The CsPbBr3 PSCs based on Nd-TiO2 ETL achieve a champion PCE of 10.06% with improved charge extraction and reduced charge recombination, surpassing the 6.57% efficiency of the reference cell. Moreover, the unencapsulated device exhibits enhanced stability with over 90% and 80% retention of the original efficiency after aging in high humidity and under intense illumination, respectively.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Environmental Sciences
Yang Li, Ruoyun Lin, Fangjie Lv, Xiaoyu Zhao, Tianzhi Yong, Xiaojun Zuo
Summary: A tannic acid-Fe complex derivative-modified carbon felt (TFD@CF) cathode was prepared for hetero-EF treatment of organic pollutants, exhibiting excellent removal efficiency (>90%) for various pollutants at neutral and alkaline pH. The cathode also showed good COD removal performance in treating actual wastewater, and possessed improved electrochemical properties with enhanced electron transfer ability and a well-pronounced Fe(III) electroreductive response.
ENVIRONMENTAL RESEARCH
(2022)