For the photocatalytic application to remove inorganic and toxic
organic species from wastewater, titania is reported to have high
efficiency, low cost and long-term stability [1–6]. Small titania particle
size is favorable in photocatalystic reaction due to the high
surface area provided. However, separation and recovery of titania is rather difficult to deal with in practical applications, typically in
the liquid system, and is an open issue to be solved. A suitable solution
of this problem is to utilize the magnetic photocatalysts comprising
both titania and magnetic materials [7–11]. Thus, TiO2
photocatalysts with small size deposited on magnetic substrates,
particularly with a core–shell structure, have drawn a variety of
attention due to their easy separation using an external magnetic
field and recyclable usage [3,12–14]. Design and controllable preparation
of magnetic photocatalysts with tailored structural, optical
and surface properties have attracted much attention
For the photocatalytic application to remove inorganic and toxic
organic species from wastewater, titania is reported to have high
efficiency, low cost and long-term stability [1–6]. Small titania particle
size is favorable in photocatalystic reaction due to the high
surface area provided. However, separation and recovery of titania is rather difficult to deal with in practical applications, typically in
the liquid system, and is an open issue to be solved. A suitable solution
of this problem is to utilize the magnetic photocatalysts comprising
both titania and magnetic materials [7–11]. Thus, TiO2
photocatalysts with small size deposited on magnetic substrates,
particularly with a core–shell structure, have drawn a variety of
attention due to their easy separation using an external magnetic
field and recyclable usage [3,12–14]. Design and controllable preparation
of magnetic photocatalysts with tailored structural, optical
and surface properties have attracted much attention
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