Yizhang Wang¹, Zhaoyang Yu¹, Jinbo Hu^1,2,*, Shanshan Chang¹, Yuan Liu¹, Ting Li², Gonggang Liu^1,*, Xiaodong (Alice) Wang³

Journal of Renewable Materials, Vol.11, No.1, pp. 147-165, 2023, DOI:10.32604/jrm.2023.021306

Abstract In this paper, the residue from bamboo factory has been used to design photo-Fenton catalyst, which has the advantages of low cost and magnetic recycling. The photo-Fenton catalytic performance of the biocarbon-based catalyst was excellent and its optimal preparation process was also explored by response surface methodology. First, bamboo-carbon fiber was selected as the photo-Fenton catalyst carrier. Subsequently, the surface of the carbon fiber was modified, with which dopamine, nano-Fe₃O₄ and nano-TiO₂ were successively loaded by hydrothermal method. After examined single factor tests, four factors including dopamine concentration, ferric chloride mass, P25 titanium dioxide mass and liquid-solid ratio were selected… More > Graphic Abstract

Wendong Feng^1,2, Jian Li², Hongxiang An², Yunhai Wang^1,*

Journal of Renewable Materials, Vol.8, No.10, pp. 1283-1293, 2020, DOI:10.32604/jrm.2020.011000

Abstract Spent IERs are released during the operation and decommissioning of nuclear facilities. The safe and efficient treatment of spent IERs is an emergent problem in nuclear industry. IRN77 is a typical ion exchange resin widely used in many nuclear power plants. Fenton process can degrade organic resins and reduce the radioactive residues volume and the disposal cost significantly. In this work, the IRN77 resin was selected as a model ion exchange resin and its treatment via Fenton process was investigated. The influencing factors for resin degradation, including catalyst dosage, reaction time, initial pH, temperature and oxidant dosage were investigated and… More >

Jiangbo Li^1,2, Lielin Wang^1,2,*, Hua Xie^1,2, Xiaoyu Li^1,2, Zhiqiang Feng^1,2, Wenxiu Zhang^1,2

Energy Engineering, Vol.117, No.3, pp. 129-142, 2020, DOI:10.32604/EE.2020.010336

Abstract This study introduced a significantly effective approach called the microwave-enhanced Fenton method to degrade spent radioactive cation exchange resin. Compared with the Fenton (99% after 180 min) and photo-Fenton (90% after 198 min) reactions, this unique microwave-enhanced Fenton reaction has the highest degradation rate for spent radioactive cation exchange resin degradation (98.55% after 60 min). Carbon dioxide, sulfate and small molecular compounds were produced in the degradation of cation exchange resin, as determined by XRD and FT-IR. A model for the microwave-enhanced Fenton degradation mechanism of cation exchange resin was constructed. Microwaves were implemented to boost the concentration of hydroxyl… More >

Zhichao Han, Yaojun Zhang^*, Panyang He

Journal of Renewable Materials, Vol.8, No.4, pp. 405-416, 2020, DOI:10.32604/jrm.2020.09351

Abstract In this study, a magnetic P zeolite was directly synthesized by utilization of industrial solid wastes of zinc slag (ZS) and circulating fluidized bed fly ash (CFBFA) via one-step hydrothermal method. The effects of different CFBFA/ZS ratios and hydrothermal times on the as-synthesized zeolite were investigated. The X-ray diffraction (XRD) and vibrating sample magnetometer (VSM) results indicated that the magnetic P zeolite possessed well-defined crystals and superparamagnetism. The as-prepared zeolite was employed as a Fenton-like solid catalyst for degradation of direct green B dye wastewater. It was discovered that the magnetic P zeolite took the advantage of rapid separation and… More >