Results 21 to 30 of about 1,386,778 (167)

Chemical Oxidation of Azo Reactive Dye and Investigation of the Reaction Mechanism

open access: yes, 2003
印染废水中的染料,特别是活性染料的降解过程从微观上说是很复杂的,我们以商品染料为基础,研究其降解过程,有助于我们研究染料废水的处理方法以及为处理次级污染物提供理论依据。 本论文首先以商品染料活性艳红KE-3B为对象,利用臭氧氧化进行处理,探讨了添加剂对臭氧氧化染料效率及对微生物活性的影响。研究表明这些存在的添加剂影响微生物的活性和染料的生物降解性。此外,研究还表明臭氧氧化可以降低染料溶液的COD值,提高可生化性。 活性染料的固色率较低,易水解。本文以活性黑KN-B为模型化合物,采用HPLC ...
章飞芳
core   +1 more source

A Review on Cu‐Based Catalysts for Dehydrogenation of Chemical Hydrides

open access: yesRare Metals, Volume 45, Issue 4, April 2026.
ABSTRACT Hydrogen (H2) plays a crucial part in the building of clean and sustainable energy systems due to its advantages of being renewable, clean, and pollution‐free. Nevertheless, the secure and effective production‐storage‐transportation of H2 presents critical challenges.
Yixing Luo   +6 more
wiley   +1 more source

Ultrafast Catalytic Decomposition Reaction Using a ZIF‐67@Cellulose Nanofiber Composite‐Based Cobalt/ Nitrogen Co‐Doped Nanoporous Carbon for Water Treatment

open access: yesRare Metals, Volume 45, Issue 3, March 2026.
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

電氧化處理反應性染料廢水之反應機制探討 [PDF]

open access: yes, 2013
本研究分別以化學氧化劑(市售漂白水)氧化程序、間接電化學氧化程序與直接電化學氧化程序等實驗結果,探討電氧化裂解有機反應性染料之化學反應途徑,並提出 3 種電氧化分解有機化物之反應機制。綜合研究與文獻資料顯示,以直接電氧化法處理有機染料,透過氯的氫氧化物或離子產生氧化作用,與電反應槽內產生的二次氧化劑,及極板上的直接氧化等三種反應途徑。這樣的機制可以解釋何以電化學程序所產生的新鮮次氯酸溶液比市售漂白水對染料去色更有效,同時也可以解釋直接電氧化法與間接電氧化法對 COD 的去除效率差異 ...
陳俊成; 楊禎祿; 何志軒
core  

CuO-H2O2非均相催化氧化染料废水

open access: yesGongye shui chuli, 2013
以活性艳红X-3B为模拟底物,研究了低温常压条件下CuO-H2O2体系催化氧化染料废水的各种影响因素及反应机制。结果表明,CuO-H2O2体系能高效彻底地氧化活性艳红X-3B,氧化率可高达99%。CuO-H2O2体系降解染料废水的速率随温度、氧化剂和催化剂投加量以及X-3B废水初始浓度的升高而升高。酸性条件能促进X-3B废水的降解。与直接染料相比,CuO-H2O2体系降解活性染料废水更加有效。
周凌云, 郭伟
doaj  

Surface Sulfate Modification Promoted Excitons Extraction of BiOBr Nanosheets for Efficient 1O2 Photosynthesis and Chlorophenols Dechlorination

open access: yesRare Metals, Volume 45, Issue 2, February 2026.
ABSTRACT Photocatalytic molecular oxygen (O2) activation provides a sustainable approach to produce singlet oxygen (1O2) for organic contaminants detoxification. However, the charge carriers‐involved pathway usually suffers from unsatisfactory 1O2 production efficiency owing to energy loss caused by photogenerated hole‐mediated superoxide species (•O2−
Yan‐Biao Shi   +8 more
wiley   +1 more source

铋和氮共掺杂TiO2的制备及光催化性能的研究

open access: yesGongye shui chuli, 2013
以钛酸四丁酯、硝酸铋和尿素为原料,采用溶胶-凝胶法制备了不同掺杂量的铋和氮的单掺杂及共掺杂TiO2光催化剂。以活性黑KN-B为模拟染料废水考察了所制备TiO2的光催化性能,研究了染料光催化降解的影响因素。结果表明,铋和氮共掺杂TiO2比TiO2及单掺杂TiO2的光催化活性要高。当Bi0.5N8.0/TiO2的投加量为4.0 g/L,活性黑KN-B初始质量浓度为40 mg/L,pH为2.23,在125 W汞灯下光照20 min时,活性黑KN-B的降解率接近99.9 ...
姜聚慧, 梁宁, 宋世理, 郭颖
doaj  

Smart Biomaterials and Dressings for the Treatment of Chronic Inflammatory Skin Diseases

open access: yesRare Metals, Volume 45, Issue 2, February 2026.
ABSTRACT Chronic inflammatory skin diseases, encompassing immune‐inflammatory conditions and infection‐associated dermatoses, pose significant clinical challenges due to high prevalence, recurrence, and therapeutic resistance, affect over 30% of the global population.
Zehao Lan   +5 more
wiley   +1 more source

TiO2、WO3对活性染料水溶液的光催化降解

open access: yesGongye shui chuli, 1992
本文试验研究采用TiO2、WO3对活性染料水溶液光催化降解,试验结果表明在光辐照下两种催化剂对活性艳蓝X-BR染料的降解都起作用,而TiO2比WO3的作用效果更好 ...
郭新章, 邓南圣
doaj  

New Advances of Degradable Magnesium‐Based Metal Biomaterials in the Field of Orthopedics

open access: yesRare Metals, Volume 45, Issue 2, February 2026.
ABSTRACT Based on their outstanding biomechanical properties and superior osteogenic activity, magnesium (Mg) and its alloys have been extensively investigated for their biocompatibility and therapeutic efficacy in treating fractures and bone defects.
Jia‐Nan Yu   +8 more
wiley   +1 more source

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