Results 21 to 30 of about 1,496,412 (168)
ABSTRACT Thermally driven hydrogenation of CO2 to light olefins (C2=–C4=) using metal oxide‐zeolite tandem catalysts is an effective strategy for achieving carbon neutrality. However, progress in this area is constrained by zeolite pore transport limitations, acid‐site inactivation, and surface carbon poisoning.
Haifeng Tian +10 more
wiley +1 more source
将4种聚醚桥连二异羟肟酸过渡金属铜(II)、锌(II)、钴(II)和锰(II)配合物作为仿水解酶模型催化羧酸酯(PNPP)水解.探讨了聚醚桥连二异羟肟酸过渡金属配合物催化PNPP水解的动力学和机理;提出了配合物催化PNPP水解的动力学模型.结果表明,在25℃条件下随着缓冲溶液pH值的增大,配合物催化PNPP水解速率提高,并表现出好的催化活性.
雷光东 +6 more
doaj
ABSTRACT Developing oxygen evolution reaction (OER) catalysts that combine high performance with cost‐effectiveness is a critical challenge for advancing the commercialization of anion exchange membrane water electrolysis (AEMWE). Practical application is often hindered by issues such as poor batch reproducibility and low‐cost efficiency.
Chuang Zhang +9 more
wiley +1 more source
分别采用电解、电解+水解酸化、水解酸化+好氧、脱色絮凝+水解酸化+好氧工艺处理河北吉藁化纤有限公司的棉浆原液废水(COD、色度高达4 484 mg/L、1 250 倍),并分别用MD-02 脱色剂和次氯酸钠处理该公司污水处理厂的出水(COD、色度分别为611.2 mg/L、500 倍)。试验结果表明:电解工艺可较大幅度地降低废水的色度,去除率达60%~72%;电解+水解工艺对色度的去除效果较为显著;常规的水解+好氧组合工艺对色度只有约23.2%的去除率, 显示出常规生化处理对棉浆废水色度去除能力的局限性;
王庆 +5 more
doaj
ABSTRACT Piezocatalysis has garnered unprecedented research enthusiasm for applications in energy and environmental fields, as it can harvest the tiny vibration energy from the natural environment and convert it into electrical energy to drive catalytic reactions.
Feixue Gao +9 more
wiley +1 more source
以唐山市生活垃圾填埋场渗滤液为对象,研究了水解酸化提高新垃圾渗滤液、4a垃圾渗滤液和25a垃圾渗滤液可生化性的可行性。实验和实践结果表明:垃圾填埋年限越长的渗滤液可生化性越差,需要水解酸化的停留时间越长,可生化性提高的幅度越小;当温度为20~35℃时,水解酸化菌的活性较强;水解酸化过程中垃圾渗滤液中的有机氮发生了氨化,释放出氨氮。
唐凤喜, 魏瑞霞, 司军, 刘景良
doaj
Read the free Plain Language Summary for this article on the Journal blog. Abstract Organic phosphorus mineralization is a critical process in the phosphorus cycle, governing phosphorus bioavailability for plants. The PhoD gene, which encodes the key enzyme alkaline phosphatase, serves as a valuable biomarker for this process.
Sandhya Mishra +3 more
wiley +1 more source
随着工业规模的扩张,难降解废水的类型和排放总量逐年递增,产生的废水具有较高生物毒性,寻求高效能的难降解废水处理技术成为研究趋势。利用自由基的高氧化能力直接矿化污染物或通过改变分子结构提高污染物的可生化性,是当前处理难降解废水的主流思路和有效途径。过硫酸盐氧化是一种新兴的难降解废水高效处理技术,活化后会产生以·OH和SO4•-为主的多种活性自由基。其具有较强的氧化性能,在多种难降解废水处理实验中得到验证。综述了过硫酸盐氧化技术处理垃圾渗滤液、印染废水、化工废水、含新兴污染物废水等难降解废水的最新研究进展 ...
王庆宏 +5 more
doaj
ABSTRACT Aqueous zinc‐ion batteries (AZIBs) hold great promise for safe and sustainable energy storage, but their commercialization is impeded by severe Zn dendrite growth and interfacial instability. To address these challenges, we propose a defect engineering strategy employing ultrafine ZnAl2O4 (ZAO) nanoparticles (∼5 nm) with oxygen vacancy defects
Yilun Ren +9 more
wiley +1 more source
采用Fenton试剂氧化-水解酸化-Biofor(一段式生物过滤氧化反应器)工艺处理硝基苯胺类农药废水。结果表明:Fenton试剂氧化CODCr去除率为73.8%,色度去除率为88.7%;水解酸化-Biofor工艺处理CODCr去除率在20%~60%,色度去除率为63.9%,在总进水CODCr≤19 870 mg/L、色度≤20 000倍时,采用Fenton试剂氧化-水解酸化-Biofor工艺,加入适当的冷却水稀释盐分,处理后出水CODCr<100 mg/L、色度<50倍。
朱乐辉 +4 more
doaj

