Understanding the stability behavior of colloidal silica in different alkali environments

被引：1

作者：

Xing, Yi ^{[1
,3
]}

Wu, Zhenyu ^{[1
]}

Li, Yaowen ^{[1
]}

Gong, Juntao ^{[1
]}

Zhang, Zhijie ^{[4
]}

Liu, Weili ^{[1
,2
]}

Song, Zhitang ^{[1
,2
]}

机构：

[1] Chinese Acad Sci, Shanghai Inst Microsyst & Informat Technol, State Key Lab Mat Integrated Circuits, Shanghai 200050, Peoples R China

[2] Zhejiang Xinchuangna Elect Technol Co Ltd, Haining 314406, Peoples R China

[3] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

[4] Univ Sci & Technol China, Hefei 230036, Anhui, Peoples R China

来源：

JOURNAL OF NANOPARTICLE RESEARCH | 2024年 / 26卷 / 05期

关键词：

Silica nanoparticles; Colloidal stability; Alkali; Non-DLVO theory; Suspension stability; PARTICLES; SPHERES; COAGULATION; DISSOLUTION; GROWTH;

D O I：

10.1007/s11051-024-05993-6

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

This paper investigates the effect of three different alkalis, namely ammonia (NH4OH), ethylenediamine (EDA), and tetrabutylammonium hydroxide (TBAOH) on the stability of colloidal silica, with pH controlled within the range of 8-11. As a result, NH4OH greatly promotes the stability of silica sol at first due to the strong solvation ability of NH4+ and then the stability begins to decrease because the electric double layer of silica is compressed. The addition of EDA into silica system leads to a reduction in the stability evidently followed by a slight increase, which can be explained by the cationic bridging effect of the ethylenediammonium cations. Meanwhile, the effect of TBAOH on silica dispersion is analogous to EDA, mainly caused by the hydrophobic and steric effects. The abovementioned relevant stability mechanisms are involved in non-DLVO theory.

引用

页数：11

共 50 条

[31] Alkali leaching features of 3-year-old alkali activated fly ash-slag-silica fume: For a better understanding of stability
Zhu, Yingcan
Longhi, Marlon A.
Wang, Aiguo
Hou, Dongshuai
Wang, Hao
Zhang, Zuhua
COMPOSITES PART B-ENGINEERING, 2022, 230
[32] Understanding of user behavior in immersive environments
Shahabi, C
Kaghazian, L
Mehta, S
Ghoting, A
Shanbhag, G
McLaughlin, ML
TOUCH IN VIRTUAL ENVIRONMENTS: HAPTICS AND THE DESIGN OF INTERACTIVE SYSTEMS, 2002, : 238 - 259
[33] Mechanism understanding of alkali-silica reaction in alkali-activated materials system
Wang, Wei
Noguchi, Takafumi
Maruyama, Ippei
CEMENT AND CONCRETE RESEARCH, 2022, 156
[34] Adsorption and flocculation behavior of cationic polyacrylamide and colloidal silica
Solberg, D
Wågberg, L
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 2003, 219 (1-3) : 161 - 172
[35] Dynamic behavior of colloidal silica in the presence of solid phase
Chida, T
Niibori, Y
Tochiyama, O
Tanaka, K
SCIENTIFIC BASIS FOR NUCLEAR WASTE MANAGEMENT XXVI, 2003, 757 : 497 - 502
[36] PHOTOCHROMIC BEHAVIOR OF A SPIROBENZOPYRAN CHEMISORBED ON A COLLOIDAL SILICA SURFACE
UEDA, M
KUDO, K
ICHIMURA, K
JOURNAL OF MATERIALS CHEMISTRY, 1995, 5 (07) : 1007 - 1011
[37] Understanding colloidal stability and thermal transitions in polyelectrolyte complexes
Zhang, Yanpu
Reid, Dariya
Yildirim, Erol
Antila, Hanne
Zhang, Ran
Sammalkorpi, Maria
Lutkenhaus, Jodie
ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 2015, 250
[38] Preparation of Colloidal Mesoporous Silica Nanoparticles with Different Diameters and Their Unique Degradation Behavior in Static Aqueous Systems
Yamada, Hironori
Urata, Chihiro
Aoyama, Yuko
Osada, Shimon
Yamauchi, Yusuke
Kuroda, Kazuyuki
CHEMISTRY OF MATERIALS, 2012, 24 (08) : 1462 - 1471
[39] BEHAVIOR OF THE HEN IN DIFFERENT ENVIRONMENTS
HUGHES, BO
ANIMAL REGULATION STUDIES, 1980, 3 (1-2): : 65 - 71
[40] Colloidal stability as a determinant of nanoparticle behavior in the brain
Curtis, Chad
Toghani, Dorsa
Wong, Ben
Nance, Elizabeth
COLLOIDS AND SURFACES B-BIOINTERFACES, 2018, 170 : 673 - 682

← 1 2 3 4 5 →