<trans-title xml:lang="en">PEI Modified Hydrated Calcium Silicate Derived from Fly Ash and Its adsorption for Removal of Cu (II) and Catalytic Degradation of Organic Pollutants</trans-title>

Ya TANG; Shengrui SUN; Jia FAN; Qingfeng YANG; Manjiang DONG; Jiahui KOU; Yangqiao LIU

doi:10.15541/jim20230209

Journal of Inorganic Materials, Volume. 38, Issue 11, 1281(2023)

PEI Modified Hydrated Calcium Silicate Derived from Fly Ash and Its adsorption for Removal of Cu (II) and Catalytic Degradation of Organic Pollutants

Ya TANG1...2, Shengrui SUN2, Jia FAN1,2, Qingfeng YANG3, Manjiang DONG2, Jiahui KOU1,* and Yangqiao LIU2,* |Show fewer author(s)

Author Affiliations

¹1. State Key Laboratory of Materials-Oriented Chemical Engineering, College of Materials Science and Engineering, Nanjing Tech University, Nanjing 210009, China

²2. Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China

³3. Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China

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Figures & Tables(18)

S1. EDS analyses of CSH

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1. (a) XRD patterns, (b) FT-IR spectra and (c) N₂ adsorption-desorption isotherms of CSH and PCSH

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2. Different magnification SEM images of (a, b) CSH and (c, d) PCSH

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S2. EDS analysis of PCSH

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S3. Linear fitting curves of (a) Langmuir model and (b) Freundlich model for isotherms of CSH and PCSH

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3. Adsorption characteristics of samples

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S4. EDS analyses of PCSH-Cu

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4. Characteristics of Cu-absorbed samples

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5. SEM images of (a) CSH-Cu, (b) PCSH-Cu, (c) CSH- Cu-c, and (d) PCSH-Cu-c

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6. (a) XRD patterns and (b) FT-IR spectra of CSH-Cu-c and PCSH-Cu-c

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7. Degradation of RhB by PMS with CSH-Cu-c and PCSH-Cu-c

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8. Suface elements and chemical status of samples

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9. Free radical capture experiments of PCSH-Cu-c

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10. Change of 4-NP residue percentage

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Table 1. Rate constants (k) for the degradation of RhB by PMS with different catalysts

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Table 1. Rate constants (k) for the degradation of RhB by PMS with different catalysts

Catalyst	C₁/(g·L^-1)	C_PMS/(g·L^-1)	C_RhB/(mg·L^-1)	k/min^-1	Ref.
MPC	1	0.616	20	0.013	[27]
α-MnO₂/Pal	0.1	0.1	20	0.0204	[28]
Vis/BiVO₄	0.5	0.616	10	0.04	[29]
rGO-CoPc	0.3	0.616	10	0.288	[30]
CSH-Cu-c	0.8	0.12	20	0.036	This work
PCSH-Cu-c	0.8	0.12	20	0.7135	This work

Table 1. Langmuir and Freundlich isotherm fitting parameters
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Table 1. Langmuir and Freundlich isotherm fitting parameters
Sample Langmuir model Freundlich model
q_m K_L R² n K_F R²
CSH 294.10 0.0200 0.9945 3.810 54.00 0.8670
PCSH 588.23 0.0563 0.9982 5.848 198.86 0.9450

Table 2. Comparison of maximum adsorption capacities of various sorbents as reported in the literature for Cu(II)

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Table 2. Comparison of maximum adsorption capacities of various sorbents as reported in the literature for Cu(II)

Sample	q / (mg·g^-1)	S_BET/ (m²·g^-1)	Ref.
Activated carbon	10	921	[S1]
Modified SBA-15 mesoporous silica	46	317	[S2]
MCM-48	126	511	[S3]
Citrate-LDH	137	8	[S4]
Mesoporous silica	153	462	[S5]
Humulus scandens-derived biochars	221	450	[S6]
Steel slag-derived CSH	244	77	[S7]
Amorphous molybdenum sulphide	259	28	[S8]
NPCS-PEI	276	491	[S9]
CSH	294	240	This work
PCSH	588	371	This work

Table 2. Rate constants (k) for the degradation of 4-NP by NaBH₄ with different catalysts

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Table 2. Rate constants (k) for the degradation of 4-NP by NaBH₄ with different catalysts

Catalyst	C₁/(g·L^-1)	C_NaBH4/(mmol·L^-1)	C_4-NP/(mmol·L^-1)	k/(×10^-3,s^-1)	Ref.
CuO NLs	0.307	10	0.12	0.36	[38]
Ag-NP/C	0.333	6.667	4.7×10^-2	1.69	[39]
Cu₂₋_xSe/rGO/PVP	2.5	62.5	0.125	2.3	[40]
Pd-FG	0.5	10	0.1	2.35	[41]
CSH-Cu-c	0.167	5	0.1	0.61	This work
PCSH-Cu-c	0.167	5	0.1	11.47	This work

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Ya TANG, Shengrui SUN, Jia FAN, Qingfeng YANG, Manjiang DONG, Jiahui KOU, Yangqiao LIU. PEI Modified Hydrated Calcium Silicate Derived from Fly Ash and Its adsorption for Removal of Cu (II) and Catalytic Degradation of Organic Pollutants[J]. Journal of Inorganic Materials, 2023, 38(11): 1281

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Paper Information

Category:

Received: Apr. 28, 2023

Accepted: --

Published Online: Mar. 6, 2024

The Author Email: KOU Jiahui (koujiahui@163.com), LIU Yangqiao (yqliu@mail.sic.ac.cn)

DOI:10.15541/jim20230209

Topics

laser devices and laser physics

Lasers and Laser Optics

Laser physics

laser manufacturing

Instrumentation, Measurement and Metrology

Table 1. Rate constants (k) for the degradation of RhB by PMS with different catalysts

Table 1. Rate constants (k) for the degradation of RhB by PMS with different catalysts

Table 1. Langmuir and Freundlich isotherm fitting parameters

Table 1. Langmuir and Freundlich isotherm fitting parameters

Table 2. Comparison of maximum adsorption capacities of various sorbents as reported in the literature for Cu(II)

Table 2. Comparison of maximum adsorption capacities of various sorbents as reported in the literature for Cu(II)

Table 2. Rate constants (k) for the degradation of 4-NP by NaBH4 with different catalysts

Table 2. Rate constants (k) for the degradation of 4-NP by NaBH4 with different catalysts

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Table 2. Rate constants (k) for the degradation of 4-NP by NaBH₄ with different catalysts

Table 2. Rate constants (k) for the degradation of 4-NP by NaBH₄ with different catalysts