Zobrazeno 1 - 10
of 100
pro vyhledávání: '"Qing-Zhou Zhai"'
Autor:
Xiao-Dong Li, Qing-Zhou Zhai
Publikováno v:
Water Practice and Technology, Vol 16, Iss 4, Pp 1475-1487 (2021)
The nano-mesoporous material SBA (Santa Barbara Amorphous)-15 was synthesized using the hydrothermal method. Hg2+ was adsorbed by SBA-15 and then the S2− in the aqueous phase by (SBA-15)-Hg(II), with the hope that materials with better S2− adsorp
Externí odkaz:
https://doaj.org/article/6994ba1b6a214a6fae0aaad30f5c5b47
Autor:
Xiao-Dong Li, Qing-Zhou Zhai
Publikováno v:
Applied Water Science, Vol 10, Iss 5, Pp 1-10 (2020)
Abstract Mobil Composition of Matter (MCM)-41 molecular sieve was successfully synthesized. Power X-ray diffraction, scanning electron microscopy and transmission electron microscopy (TEM) were used to characterize the sample. The sample showed spher
Externí odkaz:
https://doaj.org/article/13bee43e4e0141adbe075042e2e4fc90
Nano mesocellular foam silica (MCFs): An effective adsorbent for removing Ni2+ from aqueous solution
Autor:
Xiao-dong Li, Qing-zhou Zhai
Publikováno v:
Water Science and Engineering, Vol 12, Iss 4, Pp 298-306 (2019)
Nano mesocellular foam silica (MCFs) was synthesized through the hydrothermal method in this study. Powder X-ray diffraction and scanning electron microscopy were used to characterize the MCFs sample. The sample presented spherical particles and regu
Externí odkaz:
https://doaj.org/article/08d0e6ebb44f4ebdb0a324000ebda4ba
Autor:
Qing-Zhou Zhai, Xiao-Dong Li
Publikováno v:
Applied Water Science, Vol 9, Iss 6, Pp 1-11 (2019)
Abstract Nanomesoporous silica SBA-15 was prepared by hydrothermal method. The samples were characterized by powder X-ray diffraction and scanning electron microscopy. The fibrous particles with a diameter of 333 ± 10 nm were obtained. Nanoporous me
Externí odkaz:
https://doaj.org/article/35c64963b979499ba52092be0531f19c
Autor:
Xiao-Dong Li, Qing-Zhou Zhai
Publikováno v:
Journal of Chemistry, Vol 2020 (2020)
Calcium is a necessary trace element in the human body, and its low or high content in the human body is not appropriate. It is very meaningful to study the level of calcium in the human body and to determine calcium content in blood. As people take
Externí odkaz:
https://doaj.org/article/7c266092bccc4a12a1f62da4f1a75bf8
Autor:
Qing-Zhou Zhai
Publikováno v:
Bulletin of the Chemical Society of Ethiopia, Vol 23, Iss 3, Pp 327-335 (2009)
Copper(II) catalyzes the oxidation of p-acetylchlorophosphonazo(CPApA) by hydrogen peroxide in 0.10 M phosphoric acid. A novel catalytic kinetic-spectrophotometric method is proposed for the determination of copper based on this principle. Copper(II)
Externí odkaz:
https://doaj.org/article/b215959357d944418edf1ca7d9783d12
Autor:
Qing-Zhou Zhai
Publikováno v:
Bulletin of the Chemical Society of Ethiopia, Vol 23, Iss 3, Pp 445-450 (2009)
A novel catalytic kinetic spectrophotometric method for the determination of iron is developed based on the catalytic effect of Fe(III) on the oxidation reaction of p-acetylarsenazo(ASApA) by potassium periodate. Maximum absorbance of the Fe(III)−A
Externí odkaz:
https://doaj.org/article/5702806762724e5eaf7e0bf90ceea40c
Autor:
Yue-Xiang Liu, Qing-Zhou Zhai
Publikováno v:
Bulletin of the Chemical Society of Ethiopia, Vol 23, Iss 1, Pp 145-150 (2009)
Nanometer MCM-41 molecular sieve and rhodamine B (RhB) have been used for the host and guest, respectively, to prepare host-guest (nanometer MCM-41)-RhB composite materials by liquid-phase grafting method. Powder X-ray diffraction, chemical analysis,
Externí odkaz:
https://doaj.org/article/84d9a7835f9646ceb65633c5f22bd17d
Publikováno v:
Bulletin of the Chemical Society of Ethiopia, Vol 21, Iss 2, Pp 291-296 (2007)
The reaction of tribromoarsenazo(TB-ASA) with serum albumin in the presence of emulgent OP was studied by spectrophotometry. In a Britton-Robinson buffer solution at pH 2.9, tribromoarsenazo and bovine serum albumin can immediately form a red compoun
Externí odkaz:
https://doaj.org/article/5ac43abd845442eea6774b2c23b771eb
Publikováno v:
Bulletin of the Chemical Society of Ethiopia, Vol 21, Iss 2, Pp 297-301 (2007)
Based on the property that oxalic acid has the effect on the replacement of dibromochloroarsenazo in zirconium(IV)-dibromochloroarsenazo complex to produce hyperchromic effects in 1.26 M hydrochloric acid medium, a novel method for the determination
Externí odkaz:
https://doaj.org/article/6739614d24634a34aba8bb6d33666f60