Recycling heavy metals from wastewater for photocatalytic CO2 reduction

Polluted water and exhaust gas released from industrial activities cause a series of environmental issues such as heavy metals accumulation and greenhouse effect. Here, we have proposed an “adsorbent-to-photocatalyst” conversion strategy to bridge water remediation with photocatalytic CO2 reduction. Harmful heavy metals in polluted water are removed and collected by adsorbents, which are converted into valuable photocatalysts for CO2 reduction...