Results 1 to 10 of about 244,347 (156)
采用正交实验方法,探讨了过二硫酸盐用量、硫酸亚铁用量、初始pH及反应时间4个工艺参数对亚铁-过二硫酸盐法深度氧化处理造纸废水(二级生化出水)效果的影响。结果表明:过二硫酸盐用量为436 mg/L,亚铁用量为654 mg/L,原水基础上微调或不调初始pH,反应30 h,为处理效果最优工艺条件。经亚铁-过二硫酸盐法处理后上清液CODCr去除率可达90%,色度去除率可达97%。与Fenton法相比,亚铁-过二硫酸盐法在处理效果及经济成本上具有明显优势,应用前景良好。
解玉佳, 李群
doaj
ABSTRACT The electrocatalytic water splitting technique was widely taken for hydrogen evolution, due to its cost‐effectiveness and environmental friendliness. The design of electrode material as electrocatalysts play a key role in achieving high efficiency.
Yaling Zhu +5 more
wiley +1 more source
随着环境污染日益严重,各种形式的高级氧化技术逐渐发展起来。其中活化过硫酸盐高级氧化技术由于原料易得,效果显著等优点颇受人们关注。过硫酸盐活化主要产生硫酸根自由基和羟基自由基两种高活性自由基,能够有效去除难降解有机污染物。阐述了过硫酸盐活化体系中两种主要活性自由基的特点及其与有机物的反应机理;综述了活化过硫酸盐的不同方式,做了各种活化方法的技术经济优劣性分析,并对存在问题进行了分析和展望。
米记茹 +6 more
doaj
在基于硫酸根自由基(SO4·-)的高级氧化水处理技术中,SO4·-的来源主要集中于过硫酸盐,关于亚硫酸盐〔S(Ⅳ)〕的报道较少。对比分析了S(Ⅳ)和过硫酸盐(PS)产生自由基的特点,总结了由S(Ⅳ)活化产生SO4·-降解有机物的机理,介绍了过渡金属活化、光活化、电活化以及多种方式联合活化等方法活化S(Ⅳ)并用于废水处理的最新研究进展,讨论了不同活化方法的差异,并对基于S(Ⅳ)活化产生SO4·-的高级氧化水处理技术未来的研究方向进行了展望。
陈明如, 马可可, 周律
doaj
ABSTRACT High‐entropy alloys (HEAs) have attracted considerable interest from researchers owing to their tunable chemical compositions, exceptional structural stability, and promising catalytic properties. However, their large‐scale application is often hindered by complex manufacturing techniques and poor durability.
Sheng Guo +9 more
wiley +1 more source
ABSTRACT Recently, cobalt/nitrogen co‐doped materials have emerged as heterogeneous catalysts to activate peroxymonosulfate (PMS) and have been applied to advanced oxidation processes for environmental remediation. However, their recyclability and reusability remain major barriers to practical application.
Wen‐Kai Zhu +11 more
wiley +1 more source
ABSTRACT The development of efficient and stable bifunctional electrocatalysts is a key challenge for the industrialization of hydrogen production by water electrolysis. In this work, Co‐doped NiS/Ni3S2 heterostructured nanowire arrays (Co–NiS/Ni3S2 NA) were successfully constructed by precisely modulating the phase‐selective behavior of nickel ...
Xing‐Hang Liu +2 more
wiley +1 more source
抗生素类污染物对环境产生的危害日益严重。利用活化过硫酸盐氧化工艺处理抗生素废水已经成为国内外的研究热点。综述了近年来国内外利用金属催化剂、负载型金属催化剂、炭材料、UV、热处理、Cl-活化、电活化、超声活化、联合活化等过硫酸盐常规及新型活化工艺在处理抗生素废水中的最新研究进展,并讨论了不同因素对废水处理效果的影响。最后提出了活化过硫酸盐工艺在废水处理中所面临的问题和未来的发展方向。
张凌星, 肖鹏飞
doaj
ABSTRACT Developing efficient and sustainable energy conversion technologies is crucial for addressing the global energy and environmental challenges. As a promising clean energy conversion strategy, the electrocatalytic methanol oxidation coupled with cathodic hydrogen production provides a pivotal path to solve the above problems.
Tao Chen +4 more
wiley +1 more source
ABSTRACT Lithium‐sulfur batteries (LSBs) face sluggish sulfur reduction reaction kinetics and severe polysulfide shuttling issues, which significantly limit their performance. In this work, a multifunctional separator with a 3D porous framework featuring confined pore structures and selective adsorption capability is constructed to address these ...
Mengchen Zhang +12 more
wiley +1 more source

