Teaching Electrometallurgical Recycling of Metals from Waste Printed Circuit Boards via Slurry Electrolysis Using Benign Chemicals

Kaixin Liu; Shuquan Huang; Yangxin Jin; Jason Chun-Ho Lam

doi:10.1021/acs.jchemed.2c00637

Teaching Electrometallurgical Recycling of Metals from Waste Printed Circuit Boards via Slurry Electrolysis Using Benign Chemicals

Kaixin Liu, Shuquan Huang, Yangxin Jin, Jason Chun-Ho Lam^*

^*Corresponding author for this work

School of Energy and Environment

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

10 Citations (Scopus)

Abstract

The rapid growth of personal electronics has promoted a surge of e-waste worldwide. Among the e-waste stream, waste printed circuit boards (WPCBs) contain a lot of recyclable valuable metals that can incentivize the recycling operation when recovered. This pedagogical exercise demonstrates a simple electrocatalytic metal recovery strategy that works at room temperature and atmospheric pressure. Students can complete the exercise within 1.5-2 h and get to learn about electrocatalytic reactions and their parameters. The reaction can be powered by a couple of 1.5 V AA batteries and an electrolyte chemically similar to automobile antifreeze. Using quotidian objects can help students connect their laboratory learning with their daily lives. In addition to teaching electrochemistry concepts, we hope this exercise can raise awareness of the substantial increase of e-waste in recent years.

Original language	English
Pages (from-to)	782-790
Journal	Journal of Chemical Education
Volume	100
Issue number	2
Online published	29 Dec 2022
DOIs	https://doi.org/10.1021/acs.jchemed.2c00637
Publication status	Published - 14 Feb 2023

Research Keywords

General Public
High School/Introductory Chemistry
First-Year Undergraduate/General
Second-Year Undergraduate
Upper-Division Undergraduate
Environmental Chemistry
Laboratory Instruction
Hands-On Learning/Manipulatives
Applications of Chemistry
Electrochemistry
Green Chemistry
Metallurgy
Metals
Oxidation/Reduction
ELECTRONIC WASTE
HYDROMETALLURGICAL RECOVERY
VALUABLE METALS
COPPER
GOLD
END

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10.1021/acs.jchemed.2c00637

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title = "Teaching Electrometallurgical Recycling of Metals from Waste Printed Circuit Boards via Slurry Electrolysis Using Benign Chemicals",

abstract = "The rapid growth of personal electronics has promoted a surge of e-waste worldwide. Among the e-waste stream, waste printed circuit boards (WPCBs) contain a lot of recyclable valuable metals that can incentivize the recycling operation when recovered. This pedagogical exercise demonstrates a simple electrocatalytic metal recovery strategy that works at room temperature and atmospheric pressure. Students can complete the exercise within 1.5-2 h and get to learn about electrocatalytic reactions and their parameters. The reaction can be powered by a couple of 1.5 V AA batteries and an electrolyte chemically similar to automobile antifreeze. Using quotidian objects can help students connect their laboratory learning with their daily lives. In addition to teaching electrochemistry concepts, we hope this exercise can raise awareness of the substantial increase of e-waste in recent years.",

keywords = "General Public, High School/Introductory Chemistry, First-Year Undergraduate/General, Second-Year Undergraduate, Upper-Division Undergraduate, Environmental Chemistry, Laboratory Instruction, Hands-On Learning/Manipulatives, Applications of Chemistry, Electrochemistry, Green Chemistry, Metallurgy, Metals, Oxidation/Reduction, ELECTRONIC WASTE, HYDROMETALLURGICAL RECOVERY, VALUABLE METALS, COPPER, GOLD, END",

author = "Kaixin Liu and Shuquan Huang and Yangxin Jin and Lam, {Jason Chun-Ho}",

year = "2023",

month = feb,

day = "14",

doi = "10.1021/acs.jchemed.2c00637",

language = "English",

volume = "100",

pages = "782--790",

journal = "Journal of Chemical Education",

issn = "0021-9584",

publisher = "American Chemical Society",

number = "2",

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T1 - Teaching Electrometallurgical Recycling of Metals from Waste Printed Circuit Boards via Slurry Electrolysis Using Benign Chemicals

AU - Liu, Kaixin

AU - Huang, Shuquan

AU - Jin, Yangxin

AU - Lam, Jason Chun-Ho

PY - 2023/2/14

Y1 - 2023/2/14

N2 - The rapid growth of personal electronics has promoted a surge of e-waste worldwide. Among the e-waste stream, waste printed circuit boards (WPCBs) contain a lot of recyclable valuable metals that can incentivize the recycling operation when recovered. This pedagogical exercise demonstrates a simple electrocatalytic metal recovery strategy that works at room temperature and atmospheric pressure. Students can complete the exercise within 1.5-2 h and get to learn about electrocatalytic reactions and their parameters. The reaction can be powered by a couple of 1.5 V AA batteries and an electrolyte chemically similar to automobile antifreeze. Using quotidian objects can help students connect their laboratory learning with their daily lives. In addition to teaching electrochemistry concepts, we hope this exercise can raise awareness of the substantial increase of e-waste in recent years.

AB - The rapid growth of personal electronics has promoted a surge of e-waste worldwide. Among the e-waste stream, waste printed circuit boards (WPCBs) contain a lot of recyclable valuable metals that can incentivize the recycling operation when recovered. This pedagogical exercise demonstrates a simple electrocatalytic metal recovery strategy that works at room temperature and atmospheric pressure. Students can complete the exercise within 1.5-2 h and get to learn about electrocatalytic reactions and their parameters. The reaction can be powered by a couple of 1.5 V AA batteries and an electrolyte chemically similar to automobile antifreeze. Using quotidian objects can help students connect their laboratory learning with their daily lives. In addition to teaching electrochemistry concepts, we hope this exercise can raise awareness of the substantial increase of e-waste in recent years.

KW - General Public

KW - High School/Introductory Chemistry

KW - First-Year Undergraduate/General

KW - Second-Year Undergraduate

KW - Upper-Division Undergraduate

KW - Environmental Chemistry

KW - Laboratory Instruction

KW - Hands-On Learning/Manipulatives

KW - Applications of Chemistry

KW - Electrochemistry

KW - Green Chemistry

KW - Metallurgy

KW - Metals

KW - Oxidation/Reduction

KW - ELECTRONIC WASTE

KW - HYDROMETALLURGICAL RECOVERY

KW - VALUABLE METALS

KW - COPPER

KW - GOLD

KW - END

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DO - 10.1021/acs.jchemed.2c00637

M3 - RGC 21 - Publication in refereed journal

SN - 0021-9584

VL - 100

SP - 782

EP - 790

JO - Journal of Chemical Education

JF - Journal of Chemical Education

IS - 2

ER -

Teaching Electrometallurgical Recycling of Metals from Waste Printed Circuit Boards via Slurry Electrolysis Using Benign Chemicals

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TDG(CityU): Implementing Virtual Reality Activities to Deliver an Immersive Learning Experience on Climate Change and Environmental Misconducts

Carbocation Mechanism Revelation of Molecular Iodine-Mediated Dehydrogenative Aromatization of Substituted Cyclic Ketones to Phenols and Ethers

Cite this

Teaching Electrometallurgical Recycling of Metals from Waste Printed Circuit Boards via Slurry Electrolysis Using Benign Chemicals

Abstract

Research Keywords

Access Output

Other Access Options

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Projects

TDG(CityU): Implementing Virtual Reality Activities to Deliver an Immersive Learning Experience on Climate Change and Environmental Misconducts

Student theses

Carbocation Mechanism Revelation of Molecular Iodine-Mediated Dehydrogenative Aromatization of Substituted Cyclic Ketones to Phenols and Ethers

Cite this